
Full-Suspension Trail
Button Rock
Up the canyon and back
Free delivery, assembly, and fit within 25 miles of Longmont.
140mm of travel and a Class 1 motor. The one you take up Left Hand Canyon on a Saturday.
Color
Granite
Quantity
- Class 1 pedal-assist — legal on most Boulder County trails
- 140mm travel front and rear, fully adjustable
- Bosch Performance Line CX, 85 Nm, 340% support
- Mullet setup: 29in front, 27.5in rear
Why we carry it
Up the canyon and back
Button Rock Preserve is the reward at the end of a real climb, and the Button Rock is built to get you there with enough left in your legs to enjoy the descent.
Class 1 — pedal assist only, no throttle, 20 mph cap. That classification is deliberate: it is what keeps you legal on the majority of Boulder County trail systems where Class 2 and 3 are restricted.
140mm front and rear, a Bosch Performance Line CX making 85 Nm, and geometry borrowed from bikes that cost more than this one. It climbs like an e-bike and descends like a trail bike.

Best for
Canyon climbs, singletrack, Class 1 trail systems
Full specification
- Class
- Class 1
- Range
- 22–45 miles
- Top assisted speed
- 20 mph
- Weight
- 51 lb
- Max payload
- 300 lb
- Motor
- Bosch Performance Line CX, 85 Nm
- Battery
- 36V 20.8Ah / 750Wh, integrated
- Charge time
- 4.5 hours (4A charger)
- Drivetrain
- SRAM GX Eagle 12-speed
- Brakes
- SRAM Code R 4-piston, 203mm both
- Suspension
- RockShox 35 Gold 140mm / Deluxe Select+
- Tires
- 29 × 2.5 front / 27.5 × 2.6 rear
- Display
- Bosch Kiox 300
Included with every bike
- Free delivery, assembly, and fit inside 25 miles
- Free 30-day tune-up
- Free flat repair for as long as you own it
- Two-year frame and motor warranty, one year on battery
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