eGrade Bolt

Adding pedal assist to Bike Radar's gravel bike of the year? Yep. With the MAHLE ebikemotion drive unit and the Grade's floating seat stays you'll have all day comfort and confidence for whatever comes your way.

Ebikemotion 35+ with 250wh battery
Shimano GRX40000 2x10 drivetrain
WTB Nano 700x40c tires

Frame

frameGrade Alloy Triple Triangle frame, Ebikemotion specific design, Internal Battery, Tapered Head Tube

sizes availableSM, MD, LG

forkGT Grade E-Carbon, 1.5" Tapered Carbon Steerer, 12x100 Thru-Axle

wheel size700c

Wheels

rimsShining, 32h

front hubFormula, 12x100mm, 32H

rear hubeBikemotion X35+, 32H

front tireWTB Nano Comp, 700 x 40

rear tireWTB Nano Comp, 700 x 40

Drivetrain

rear derailleurShimano GRX

shiftersShimano GRX400, 10-speed

rear cogsShimano HG500, 11-34T

chainKMC X10, 10-speed

crankShimano GRX, 46/30

bottom bracketShimano BSA RS500

chain deviceChain Guide

pedalsNot included

Cockpit

handlebarGT Butted 6061 Alloy, 16° Flare Drop

stemGT All Terra 3D Forged Alloy, 31.8

gripsGT Grip Bar Tape w/Gel, 3.5mm

headset1.5" Lower to 1-1/8" Upper w/ Reducer, 25mm Alloy Top Cap

seatpostGT All Terra Two Bolt Alloy

saddleFabric Scoop Shallow/ Sport, Steel Rails

Brakes

brakesShimano GRX 400 Hydro Disc, 160/160mmRT56 Rotors

E-Bike

drive unitMAHLE ebikemotion X35 250W

batteryMAHLE ebikemotion X35 250Wh

chargerX35 Charger

Please note that, based on component availability and other factors, specifications are subject to change without notice.

Fit Guide

XS: 5'0 - 5'5"
SM: 5'3" - 5'8"
MD: 5'7" - 5'11"
LG: 5'11" - 6'2"
XL: 6'2" - 6'5"

Geometry

Sizes (mm)	SM	MD	LG	XL
Seat tube length	458	505	553	600
Seat tube angle effective	73 °	73 °	73 °	73 °
Top tube horizontal	545	562	581	601
Top tube actual	523	542	562	585
Head tube angle	70 °	71 °	71 °	71 °
Standover	741	782	822	862
Head tube length	124	150	183	214
Wheelbase	1062	1065	1086	1107
Front center	617	621	641	662
Chainstay length	455	455	455	455
Bottom bracket drop	75	75	75	75
Bottom bracket height	284	284	284	284
Fork rake	55	55	55	55
Stack	550	577	603	630
Reach	385	405	425	445

Are the wheels tubeless compatible?

No, the wheels are not compatible with tubeless.

What headset is used on the eGrade?

The eGrade uses a Semi-Integrated, 1-1/8” - 1-1/2” headset.

What is the max rotor size for the front and rear brakes on the eGrade?

The native rear brake and max rotor size on the rear brake is a 160mm rotor. The front brake is compatible with 160/180mm rotors.

What derailleur hanger is used on the eGrade?

The derailleur hanger is a BT ST SS 077. (Part #K33050)

What is the max tire width on the eGrade?

The max tire width is a 47mm wide tire.

What bottom bracket is used on the eGrade?

The eGrade uses a BSA/68mm bottom bracket.

What battery is used on the eGrade?

The eGrade uses an E-Bike Motion X35 B1-C battery.

What drive system is used on the eGrade?

The eGrade uses a E-Bike Motion X35 M1-C drive system. Please click here to access the owners manual from E-Bike Motion.

What is the max rider weight on the eGrade?

The max rider weight is 305lbs/138kg.

Is touchup paint available?

Unfortunately, touchup paint is not available at this time as our paint codes are unique to our painter.

GT Tech Book

EN

GT Owner's Manual

EN FR DE IT DU

Download PDF

All Gravel

Since its introduction in 2014, Grade has pushed the boundaries of adventure riding. The first ever purpose-built carbon gravel bike, made major waves when it was launched, winning multiple industry awards. In 2019, we pushed it even further, redesigning the frame with our floating Triple Triangle™ seatstays, and once again, the accolades poured in, being named Gravel Bike of the Year from BikeRadar and Bike Rumor. Pretty sweet laurels, right? Well we’re not resting on em! The 3rd generation gravel-pioneering Grade once again claimed BikeRadars Gravel Bike of the Year and is more capable than ever, with a new frame, featuring 30mm of “Gravel Travel”, evolved geometry, increased tire clearance, internal cable routing, and plenty of frame protection for when the road ends and the fun begins.

Gravel

eGrade Bolt

Added To Cart

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