Trek Marlin+ 6 Electric Hardtail Mountain Bike
- Class 1
- Up to 400 Wh
- 251-300 lb max load
- Up to 20 mph
SVT Score, Lower
A Class 1 electric hardtail with a 120 mm fork, a 50 Nm Bosch motor and a 400 Wh battery at 50.5 lb; no lights and no published range.
$3,000
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Usability
4.3 out of 10Strengths
- Light for an electric mountain bike
- Long travel front fork
- Colour display with app lock
- Calm natural assist
Drawbacks
- Gentle motor on steep climbs
- No lights fitted
- Tires not tubeless ready
- Range not published
- Small battery for long rides
An easy entry trail e-bike, but small battery and gentle power
Specs
- TypeMountain
- E-Bike ClassClass 1
- BatteryUp to 400 Wh
- MotorMid-drive
- Top SpeedUp to 20 mph
- Weight41-55 lb
- Max Rider Load251-300 lb
- BrakesHydraulic disc
- SuspensionFront
- FoldingDoes not fold
- CertificationsClaimed only
- Warranty2 Years
Not published by Trek: claimed range.
Not checked: Trek's own rotor size for this build
At a glance
- Shimano CUES 9-speed
- Rack and fender mounts
- UDH derailleur hanger
Trek is a brand of Trek Bicycle Corporation, a privately held company in Waterloo, Wisconsin.
- Trek Bicycle Corporation sells Trek e-bikes in the US through its own store at trekbikes.com and through Trek stores and authorized retailers.
- The US store prices its e-bikes online and offers in-store pickup or direct-to-home shipping.
- Trek e-bikes are not sold on Amazon US under Trek's own name.
- Trek's stores sell an e-bike range from throttle hybrids and cargo haulers to carbon e-road, e-gravel and trail eMTBs.
- None of REI, Dick's Sporting Goods, Walmart, Target, Best Buy or Costco sells Trek e-bikes as the seller; Trek sells them through its own Trek stores and authorized bike shops (October 2026).
The Trek Marlin+ 6 is a Class 1 electric hardtail mountain bike with a Bosch Active Line Plus mid-drive (smart system) rated 50 Nm and a 400 Wh Bosch CompactTube battery that Trek says only a trained technician should remove.
It has Tektro HD-M275 hydraulic disc brakes with 203 mm centerlock rotors in retailer spec lists, a 120 mm SR Suntour SF26 X1 34 fork, Bontrager Montrose Comp tires on rims that are not tubeless ready and a Shimano CUES 9-speed drivetrain.
Trek lists 22.90 kg (50.49 lb) in size medium with tubes and a 300 lb total limit. A Bosch Purion 200 colour display comes fitted, the Bosch eBike Flow app adds digital locking, and the frame has rack, fender and kickstand mounts but no wired lights. Assist runs to 20 mph, and Trek publishes no range figure.
Trek also lists a Marlin+ 6 as product 41009 at $2,499.99 with an SR Suntour XCM34 fork, and the Marlin+ 8 at $3,999.99.
Questions answered from our data
Is Trek good?We list 12 Trek products and score 12 of them. Their overall scores run from 4.4 to 5.9, with a median of 5.5, against a median of 5.6 for all 130 products we score.
How much does an electric bike cost?The 87 electric bikes we list run from $799 to $12,500, with a median of $1,700.
Are electric bikes UL certified?31 of the 87 electric bikes we list carry a UL 2849 listing we could look up by model.
How far can an electric bike go?75 of the 87 electric bikes we list claim 41 miles or more on a charge, each on its maker's own basis.
