Electric Hunting Bike Drivetrains Explained: Mid-Drive vs Hub, Gearing, AWD & More

The drivetrain is the single most important decision on a hunting ebike. It determines how you climb, how quietly you approach, how much maintenance you do trailside, and whether you make it back to the truck when conditions get ugly.

We sell every major drivetrain configuration — mid-drive, hub motor, AWD, single speed, geared, and Rohloff internal hubs. We sell these bikes, ride them, and hear the feedback from hunters. This guide is not about declaring a winner. It is about matching the right drivetrain to your terrain, your hunting style, and your tolerance for maintenance.

Updated March 2026. All example bikes are current models available at ebikegeneration.com.

Mid-Drive vs Hub Motor: The Fundamental Choice

Every hunting ebike uses one of two motor types. This is the first fork in the road, and it shapes everything else about the bike.

Mid-Drive Motors

A mid-drive motor sits at the pedals (the bottom bracket) and drives the chain. Because the motor's power goes through your gears before reaching the rear wheel, it can multiply torque at low speeds — exactly what you need on steep climbs with a loaded bike.

How it works: When you shift into a low gear and the motor engages, the motor's power is amplified by the gear ratio. A 1000W motor in a low gear produces far more force at the wheel than a 1000W hub motor spinning directly. This is why mid-drives dominate in mountain terrain.

As one hunter on Hunt Talk put it: "A mid-drive allows you to take advantage of the gearing and can climb any hill that you can get a bike up without flipping over backwards."

The tradeoff: All that motor power runs through the chain, cassette, and derailleur — components originally designed for human power. High-torque mid-drives eat chains and cassettes faster than your legs ever could, and the derailleur becomes a vulnerability in rough terrain.

A Rokslide user warned: "The standard chain, cassette, and derailleur setup are not sufficient for the torque these mid-drives are putting out. Users report countless problems with bent teeth, broken chains, broken derailleurs."

Another hunter on the same thread added: "If a rock or log takes the derailleur out, you are walking it back. Some have had to tow buddies with mid-drives back to the trailhead."

Best for: Steep terrain, heavy loads, elk/mule deer country, long climbs, riders who want the most efficient use of battery power on hills.

Mid-drive hunting bikes we carry:

BAKCOU Mule SD — Bafang Ultra M620, 160 Nm, $5,599
BAKCOU Scout — Bafang Ultra M620, full suspension, $4,799
Rambo Rebel 2.0 — Bafang BBSHD, 160 Nm, $3,299
Rambo Roamer 2.0 — Bafang 750W mid-drive, new for 2026

Hub Motors

A hub motor is built into the wheel — either the rear wheel or, on AWD bikes, both front and rear. The motor spins the wheel directly, bypassing the chain and gears entirely.

How it works: The motor applies force directly to the wheel at a fixed ratio. No gears, no chain involvement. This means the chain, cassette, and derailleur (if the bike has one) only carry your pedaling power — not the motor's. On bikes like the BAKCOU Flatlander SD, the hub motor has an internal dual-speed gear system, so there is no external derailleur at all.

The tradeoff: Without gear multiplication, hub motors produce less effective climbing force than mid-drives. They also add unsprung weight to the wheel, which affects handling and suspension performance. On sustained steep climbs, hub motors can overheat.

As one Rokslide user noted: "In general, hub drives won't get you up too much elevation because they overheat."

But there is a critical counterpoint — from the same Rokslide thread on mid-drive reliability: "A rear hub drive can still be ridden with power even with a broken chain." If your chain breaks on a mid-drive, the motor is useless. If your chain breaks on a hub motor bike, you still have powered wheels.

Best for: Flat to rolling terrain, snow and mud (especially AWD), hunters who prioritize low maintenance and reliability over climbing power, whitetail country, food plots.

Hub motor hunting bikes we carry:

BAKCOU Flatlander SD — 750W dual-speed internal hub, zero derailleur, $3,699
Rambo Megatron 4.0 AWD — Dual 1000W hubs, 2,500W peak, $3,849
Rambo Krusader 3.0 AWD — Dual 500W hubs, $2,969
BAKCOU Kodiak SD AWD — Dual 750W hubs with SRAM 9-speed, $4,199

Quick Comparison

	Mid-Drive	Hub Motor
Climbing	Excellent — uses gears to multiply torque	Limited — fixed ratio, can overheat on long climbs
Noise	Moderate — motor drives chain (some whine)	Quiet — motor is self-contained in wheel
Drivetrain wear	Higher — motor torque wears chain/cassette faster	Lower — motor bypasses chain entirely
Broken chain	Bike is dead — motor cannot engage	Motor still works — ride home on power
Battery efficiency	Better on hills (gear leverage)	Better on flat ground (direct drive)
Weight distribution	Centered (low and middle)	In wheel(s) — affects handling
Maintenance	More — chain, cassette, derailleur all wear	Less — motor is sealed, fewer wear parts

The Bafang Motors: Not All 1000W Motors Are Equal

Both BAKCOU and Rambo use Bafang motors, but they use different Bafang motors. The difference matters more than most spec sheets suggest.

Bafang Ultra M620 — The Mountain Motor

Rated Power	1,000W nominal / 1,500W peak
Torque	160 Nm
Motor Weight	~13.5 lbs (6.1 kg)
Pedal Assist	Torque-sensing
Internal Gearing	2-speed automatic planetary transmission
Noise	Moderate (helical-cut gears)
Used in	BAKCOU Mule SD, Scout, Scout Jager, Mule Jager SD

The M620 is purpose-built as a complete eBike motor system. Its internal 2-speed automatic transmission shifts based on load and cadence — high torque at low speeds, efficiency at cruising speeds. The helical-cut gears are quieter than the spur gears used in cheaper motors. And the torque sensor gives proportional power delivery — push the pedals harder, get more assist. Soft pedal, soft assist.

At 160 Nm, it produces more torque than any other production mid-drive. That is not marketing — that is the spec that makes hunters haul elk quarters up switchbacks.

An Archery Talk user who switched from a Rambo to a BAKCOU Mule reported: "Putting 200 hard miles on it over 3 seasons. Pretty much bulletproof. Goes anywhere."

The downside: It is heavy (13.5 lbs for the motor alone), expensive, and proprietary. Parts and service require the OEM or a specialized shop. As one Endless Sphere user put it: "Anyone doing their own repairs and maintenance should stay with the BBSHD" because M620 parts availability is limited.

Bafang BBSHD — The Quiet Workhorse

Rated Power	1,000W nominal / ~1,632W peak
Torque	160 Nm (rated) / ~120-130 Nm sustained
Motor Weight	~9 lbs (4.0 kg)
Pedal Assist	Cadence-sensing (standard)
Internal Gearing	Single-stage reduction
Noise	Low — Rambo specifically markets it as "Bafang's quietest high-torque motor"
Used in	Rambo Rebel 2.0, Rebel 2.0 SS

The BBSHD is the most proven high-power mid-drive in the eBike world. Originally designed as an aftermarket conversion motor, it has years of real-world data and a massive community knowledge base. Parts are available, repairs are well-documented, and every eBike shop knows how to work on one.

Rambo specifically chose the BBSHD for the Rebel 2.0 because of its noise profile. The BBSHD variant in the Rebel is notably quieter than the Bafang Ultra M620. For hunters who prioritize stealth on approach, this matters.

An Electric Bike Review forum user explained the difference: "The Ultra offers torque sensing — which is easily adjusted to suit its rider, while the BBSHD has cadence sensing which is going to power you up to speed whether you are pedaling hard or easy."

Translation: The M620 feels like an extension of your legs. The BBSHD feels like a power switch — you pedal, it goes. Different feel, not necessarily worse. Some riders prefer the BBSHD's more predictable power delivery.

Known weakness: The BBSHD has a nylon reduction gear internally that can strip under sustained high-torque abuse. Steel replacement gears are available as an aftermarket upgrade. The motor also puts more stress on external drivetrain components (chains, chainrings) compared to the M620's more refined power delivery.

Bafang 750W Mid-Drive — The Trail-Legal Option

Rated Power	750W nominal / 1,000W peak
Torque	~100-120 Nm
Motor Weight	~8.5 lbs (3.8 kg)
Used in	Rambo Roamer 2.0 (new for 2026)

The Roamer 2.0's 750W Bafang mid-drive sits at the sweet spot for public land compliance. Many trail systems and hunting areas restrict eBikes to 750W motors. This motor is lighter and less aggressive than the BBSHD or M620, making it a better fit for riders who need trail-legal access and do not need maximum torque.

It is not a mountain motor. But paired with the Roamer's Box 8-speed drivetrain and 24" wheels, it handles moderate hills and mixed terrain well — and it does so at a price well below the BAKCOU lineup.

Bafang Hub Motors (500W / 750W / 1000W)

500W Hub	~40-55 Nm per motor. Used in dual configs on Rambo Krusader 3.0 and Revolt.
750W Hub	~85 Nm. Used in BAKCOU Flatlander SD (dual-speed internal) and dual configs on Kodiak SD AWD.
1000W Hub	~55-80 Nm per motor. Used in dual configs on Rambo Megatron 4.0 and Hellcat 2.0.

Hub motors are quieter than mid-drives because the motor is self-contained — no chain noise from motor power. For hunters stalking whitetail through timber at dawn, this silence is a real advantage. The BAKCOU Flatlander SD takes this further with a dual-speed internal hub that eliminates the external derailleur entirely — nothing to break, nothing to clog with mud.

Gearing: Single Speed, 8-Speed, 11-Speed, or 14-Speed Rohloff

Once you have chosen your motor type, the next decision is how many gears — and what kind.

Single Speed — Maximum Simplicity

A single-speed drivetrain has one chainring in front, one cog in back, and no derailleur. The chain runs in a straight line. Nothing shifts, nothing to adjust, nothing to break.

On a hunting ebike with a high-torque motor, single speed makes more sense than it does on a regular bicycle. The motor compensates for the lack of gearing — instead of shifting into a lower gear to climb, the motor simply provides more torque. You lose the mechanical advantage of gearing, but you gain bulletproof reliability.

The hunting ebike community is increasingly embracing this approach. As one MTBR user predicted: "An integrated gearbox transmission on an ebike makes far more sense than continuing development using the rear derailleur. Within 7 years, ebike motors with integrated transmissions will be the standard."

Sprocket sizing matters. On the Rambo Rebel 2.0 SS, you choose between three rear sprocket sizes:

22T — Higher gear ratio (42/22 = 1.91). Biased toward speed on flat terrain. Best for plains, food plots, and fire roads.
40T — Low gear ratio (42/40 = 1.05). Maximum climbing torque. Best for steep, mountainous terrain with heavy loads.

The BAKCOU Flatlander SD takes a different approach — its hub motor has an internal dual-speed gear system that shifts automatically, giving you two effective ratios with zero external drivetrain components.

Best for: Hunters who want zero trailside maintenance, riders in harsh conditions (deep mud, water crossings, heavy brush), and anyone tired of replacing derailleurs.

8-Speed (Box or Shimano) — The Sweet Spot for eBikes

Eight-speed drivetrains have emerged as the go-to for hunting ebikes, and there is a good engineering reason: the chain and cogs are wider and stronger than 11 or 12-speed systems.

When a 1000W motor is pushing 160 Nm through your chain, chain width matters. A wider 8-speed chain handles that load far better than a narrow 12-speed chain designed for a 200-watt human. The cassette cogs are thicker, the spacing is wider, and shifting is more forgiving of imperfect cable tension — which is what you get after a few miles of mud and vibration.

Box Components vs Shimano:

Rambo's Rebel 2.0 and Roamer 2.0 use Box 8-speed drivetrains (11-42T cassette). Box Components is an American company founded by a former SRAM engineer, and their drivetrains are purpose-built for eBikes. The wider gear spacing, heavier-duty construction, and eBike-specific chain tension are designed to survive motor torque that would shred a 12-speed system.

As EMTB Forums noted in their review: "The Box cassette was originally designed for use with e-bikes and uses sprockets made from stamped steel... with only nine gears, the spacing between each sprocket is larger, which should improve shifting performance because derailleur indexing and cable tension don't need to be as precise."

Shimano 8-speed (11-40T) is used on several Rambo AWD models as an optional upgrade. It is a proven system with widely available parts. The main difference from Box is the cassette range (40T vs 42T top cog) and the eBike-specific engineering emphasis.

Best for: Most hunting ebike riders. Good gear range, durable components, reasonable replacement cost, and forgiving shifting. If you are not sure what gearing to get, 8-speed is the safe choice.

9 to 11-Speed (SRAM NX / GX) — Premium Range

BAKCOU uses SRAM NX drivetrains across their lineup — 9-speed on the Kodiak SD AWD and 11-speed on the Mule SD, Scout, and Jager models.

More gears means finer steps between ratios, which lets you find a more optimal pedaling cadence at any speed. The SRAM NX 11-speed (11-42T) on the Mule SD provides a wide range while keeping the rider pedaling efficiently across varied terrain.

The tradeoff: Narrower chains, thinner cogs, and tighter tolerances. These systems need more precise adjustment and wear faster under motor loads than 8-speed systems. Chain and cassette replacement costs are higher. But for riders in mountain terrain who need both climbing and descending range, the wider gear spread justifies it.

SRAM tier guide for eBike use:

NX — Entry-level. Stamped steel cassette. Works fine, wears fastest. Most affordable to replace.
GX — Mid-tier. Machined components. The sweet spot for eBikes — good durability at reasonable cost.
X01 / XX1 — High-end. Carbon and titanium. Overkill for hunting ebikes — lighter materials do not handle motor torque as well, and replacement costs are painful.

Rohloff E-14 — The Bulletproof Option

The Rohloff Speedhub E-14 is a 14-speed transmission sealed inside the rear hub. All 14 gears are enclosed in an oil bath — no exposed derailleur, no cassette, no jockey wheels to clog with mud. You shift with a single electronic button, and you can shift under load or while stopped.

Gear Range	526% — matches or exceeds a 12-speed SRAM Eagle (520%)
Gear Steps	14 evenly-spaced gears with ~13.6% between each
Maintenance	Oil change every 3,100 miles (25ml of Rohloff oil)
Weight Penalty	~500-700g heavier than derailleur system
Cost	$1,600–$1,900 for the hub alone
Made in	Hand-assembled in Fuldatal, Germany

BAKCOU offers the Rohloff on two models: the Mule Jager SD ($7,399) and the Scout Jager ($7,599). These are the most expensive hunting ebikes on the market, and the Rohloff hub is why.

The real-world feedback is compelling. An EMTB Forums user with 2,500 km on a Rohloff eBike reported: "No issues... still with the original chain, original rear sprocket, original front chainring and nothing needs replacing."

Another EMTB rider with 4,000 miles of 70% off-road riding said: "Once installed and set up, I never had one single drivetrain issue. Zero problems, perfect shifting every time."

An Electric Bike Review user who paired a Rohloff with a Bafang Ultra called it: "I cannot believe how nice this Rohloff hub is, especially coupled to a Bafang Ultra."

Fair warning: The Rohloff is not perfect. One Electric Bike Review user cautioned: "Almost all Rohloff hubs eventually start leaking. In particular if you encounter large temperature changes the hub will inevitably start leaking oil." And another warned about torque limits: "I would not recommend a Rohloff with the Bafang Ultra — the IGH is not rated to handle the Nm of torque."

BAKCOU's Jager models are factory-engineered for this combination, so the motor controller and Rohloff are tuned to work together. That said, the Rohloff adds weight, cost, and complexity that most hunters do not need. It is a premium choice for riders who log serious backcountry miles in harsh conditions and want the closest thing to a maintenance-free drivetrain.

Best for: Serious backcountry hunters who ride thousands of miles per year in extreme conditions, want minimal trailside maintenance, and have the budget for a premium setup.

AWD: When Two Wheels Pull (and When They Shouldn't)

All-wheel-drive hunting ebikes use dual hub motors — one in each wheel — to provide traction from both contact points. On paper, AWD sounds like an obvious win. In the field, it is more nuanced than the marketing suggests.

When AWD Helps

Deep mud and snow: When the rear wheel spins, the front wheel pulls. This is AWD's primary advantage and it is significant.
Sand and loose gravel: Distributed power prevents the rear wheel from digging a trench.
Flat, slippery terrain: Two powered wheels maintain forward progress when one loses grip.
Heavy loads on moderate grades: The combined power of two motors helps with loaded trailers and gear.

When AWD Hurts

Here is where the marketing stops and reality starts.

A Rokslide user who tested dual-motor bikes found: "It's really easy to lose traction with the front wheel when using both motors simultaneously, so riders usually run it in rear motor only unless climbing a long grade." The same user noted a dual-motor bike "weighs about 120 lbs, which is a significant drawback."

Another Rokslide hunter recommended mid-drives over AWD, noting: "Mid-drives significantly outperform on user-unfriendly trails."

The physics problem: Hub motors cannot leverage your gears. On a steep climb, a mid-drive multiplies motor torque through the drivetrain. An AWD bike has two hub motors fighting gravity at a fixed ratio — more total watts, but less effective climbing force per watt. Both hub motors also add unsprung weight to the wheels, which hurts suspension performance and handling on technical terrain.

The weight problem: Two motors, two controllers, extra wiring, and larger batteries to feed them. The Rambo Megatron 4.0 weighs 89 lbs without battery. The BAKCOU Mule SD (single mid-drive) weighs ~77 lbs. That 12-lb difference matters when you are lifting the bike onto a truck rack or muscling it over a downed log.

The Smart Approach: Switchable AWD

Both Rambo and BAKCOU engineer their AWD bikes with switchable drive modes — FWD, RWD, and AWD. This matters. Smart riders run in rear-wheel-drive for most riding and engage AWD only when conditions demand it. The Megatron 4.0, Hellcat 2.0, Krusader 3.0, and BAKCOU Kodiak SD AWD all offer this.

Our recommendation: If your terrain is primarily flat with mud, snow, sand, or loose conditions — AWD is a genuine advantage. If your terrain is steep and technical — a single mid-drive motor with good gearing will outperform AWD hub motors on climbs while being lighter and more efficient. If you face both conditions, the Rambo Hellcat 2.0 is the only full-suspension AWD hunting bike on the market — but understand you are trading climbing efficiency for traction capability.

Protecting the Derailleur: The Weakest Link

If your hunting ebike has a derailleur (most geared bikes do), it is the single most vulnerable component on the bike. It hangs exposed on the right side of the rear axle — directly in the path of rocks, sticks, tall grass, corn stalks, and mud.

Hunters face conditions that road cyclists and even mountain bikers rarely encounter. Cornfields, CRP grass, creek crossings, and deadfall are a minefield for derailleurs. As one hunting forum user recounted: "The chain jumps off with way less mud or snow than expected, and the derailleur gets clogged up with grass."

Another reported a stick flipping up and pushing the derailleur into the spokes — destroying both the derailleur and the wheel.

How to Protect It

Derailleur guard / bash guard: A metal plate that bolts to the derailleur hanger and shields the derailleur from impacts. Not all bikes come with one — add one if yours does not.
Chain guide: Prevents the chain from bouncing off the chainring on rough terrain. Essential on mid-drives where motor torque can throw the chain during rough descents.
Carry a spare derailleur hanger: The hanger is designed to bend or break instead of the frame. They are model-specific, lightweight, and cost $10-20. Carry one in your pack. If the hanger bends, you can swap it trailside in 10 minutes.
Check alignment regularly: A slightly bent hanger causes poor shifting that progressively worsens. A derailleur alignment gauge is a worthwhile shop tool.
Shift before you need to: Unlike a regular bike, an eBike's motor does not respond well to shifting under heavy load. Anticipate climbs and shift down before the motor is pushing hard through the chain.

Or Eliminate It Entirely

The surest way to protect a derailleur is to not have one. Three approaches:

Single speed: The Rambo Rebel 2.0 SS ($3,299) removes the derailleur entirely. One chainring, one cog, a thick chain. Nothing to break.
Internal hub (Rohloff): The BAKCOU Scout Jager ($7,599) and Mule Jager SD ($7,399) seal all 14 gears inside the hub. Full gear range, zero exposure.
Hub motor with internal gearing: The BAKCOU Flatlander SD ($3,699) uses a dual-speed internal hub motor — no derailleur, no external gearing, no chain-on-cassette wear.

Which Drivetrain for Your Hunt?

Your Situation	Recommended Drivetrain	Example Bike
Western elk/mule deer — steep mountains, heavy pack-outs	Mid-drive + 11-speed SRAM	BAKCOU Mule SD ($5,599)
Whitetail — flat timber, food plots, quiet approach	Hub motor or quiet mid-drive	Rambo Rebel 2.0 ($3,299) or BAKCOU Flatlander SD ($3,699)
Snow, mud, sand — traction is everything	AWD dual hub motors	Rambo Megatron 4.0 AWD ($3,849)
Harsh conditions — brush, water crossings, cornfields	Single speed or internal hub (no derailleur)	Rambo Rebel 2.0 SS ($3,299) or BAKCOU Flatlander SD ($3,699)
Money is no object — want the most reliable drivetrain possible	Mid-drive + Rohloff 14-speed hub	BAKCOU Scout Jager ($7,599)
Budget-conscious — under $3,000	AWD hub motors (maintenance-free single speed)	Rambo Krusader 3.0 AWD ($2,969)
Public land — need 750W trail-legal compliance	750W mid-drive + 8-speed	Rambo Roamer 2.0 (new for 2026)
Mixed terrain — some hills, some flat, some mud	Mid-drive + 8-speed (durable, versatile)	Rambo Rebel 2.0 ($3,299) with Box 8-speed
Rough terrain + full suspension + AWD	AWD dual hub + full suspension	Rambo Hellcat 2.0 FS AWD ($4,399)

Frequently Asked Questions

Will a mid-drive motor destroy my chain?

Not destroy — but wear it faster. A 1000W mid-drive puts motor torque through the same chain that was designed for your legs. Expect to replace the chain every 1,000-2,000 miles depending on conditions, compared to 3,000-5,000 miles on a regular bike. Using a quality chain ($30+) and keeping it clean and lubricated makes a significant difference. Avoid shifting under heavy motor load — that is when chain and cassette damage happens.

One note of caution: if you try to climb a hill and you are in a higher gear, your high torque motor will likely snap your chain.

Is the Bafang Ultra M620 worth the extra cost over the BBSHD?

If you hunt steep mountain terrain and value refined torque-sensing pedal assist, yes. The M620 is smoother, stronger on climbs, and puts less stress on the drivetrain. If you hunt moderate terrain and value field serviceability, the BBSHD is proven, widely supported, quieter in Rambo's implementation, and significantly less expensive. Both are excellent motors — they just prioritize different things.

Should I get a Rohloff hub?

For most hunters, no. The Rohloff adds $2,000+ to the price and is overkill for recreational hunting use. It makes sense if you ride thousands of miles per year in extreme conditions (backcountry guides, outfitters, multi-season heavy use) and value near-zero drivetrain maintenance. For everyone else, a well-maintained derailleur system or a single-speed setup will serve you well at a fraction of the cost.

Is AWD always better than single-motor?

No. AWD adds weight (10-20 lbs), reduces battery efficiency, and does not climb as well as a single mid-drive motor with gearing. AWD excels in specific conditions — deep mud, snow, sand, loose gravel — where traction is more important than climbing torque. If you hunt primarily flat, slippery terrain, AWD is a genuine advantage. If you hunt mountains, a single mid-drive outperforms AWD on climbs while being lighter and more efficient.

What happens if my chain breaks on the trail?

On a mid-drive: the motor is useless because it drives through the chain. You pedal (or walk) home with no assist. Carry a chain breaker tool and a quick link — a trailside chain repair takes 5-10 minutes. On a hub motor: the motor still works because it is in the wheel, not in the chain. You ride home on throttle alone. This is a legitimate safety advantage of hub motors for remote backcountry use.

What is the difference between cadence sensing and torque sensing?

Cadence sensing (BBSHD, most hub motors) detects whether you are pedaling and at what speed. The motor provides a set level of assist regardless of how hard you push. It feels more like an on/off switch — predictable but not proportional. Torque sensing (M620) measures how hard you are pushing the pedals and provides proportional assist. Push harder, get more. Ease up, get less. It feels more natural and is more battery-efficient because the motor only works as hard as you do.

How loud is a mid-drive motor? Will it spook game?

It depends on the motor. The Bafang BBSHD in the Rambo Rebel 2.0 is notably quiet — Rambo markets it as "Bafang's quietest high-torque motor" and from our experience that claim is accurate. The Bafang Ultra M620 in BAKCOU bikes is louder under load, with a noticeable mechanical hum. Hub motors are the quietest option overall — no chain noise from motor power. If stealth approach is critical, the Rebel 2.0 or a hub-motor bike like the Flatlander SD are your best options.

Need Help Choosing? Talk to Us.

We have studied, ridden, and sold every drivetrain configuration covered in this guide. Call us at (302) 343-3950 or email us with your terrain, your hunt, and your budget — we will match you to the right drivetrain.

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Electric Hunting Bike Drivetrains Explained: The Complete Guide