Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2021 GT Grade Bolt
Value Guide market data · 2021 GT Grade Bolt
12-month trend
16%
Direction and magnitude, not judgment
vs. category average
6%
Drops faster than category avg
Price over time - 2021 GT Grade Bolt
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Grade model years
2021 Grade Bolt lineup
Overview
About this bike
2021 GT Grade Bolt value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- GT Grade E-Carbon, 1.5" Tapered Carbon Steerer, Flat Mount Disc, 12x100 Thru-Axle
- Frame
- All New Grade Alloy 700c Frame, EnduRoad Triple Triangle Design feat. Floating Seatstays, Mahle Ebikemotion specific design, Internal Battery, Tapered Head Tube
Drivetrain
- Groupset
- Shimano GRX
- Bottom Bracket
- Shimano BSA RS500
- Cassette
- Shimano HG500, 11-34T
- Chain
- Shimano HG601
- Crankset
- Shimano GRX, 46/30T
- Front Derailleur
- Shimano RX400
- Rear Derailleur
- Shimano GRX RX400
- Shifters
- Shimano GRX400, 10-speed
Brakes
- Brakes
- Shimano GRX 400 Hydro Disc, 160/160mm RT56 Rotors
Cockpit
- Handlebars
- GT Butted 6061 Alloy, 16° Flare Drop
- Headset
- 1.5" Lower to 1-1/8" Upper w/ Reducer, 25mm Alloy Top Cap
- Saddle
- Fabric Scoop Shallow Sport
- Seatpost
- Alloy Micro Adjust 27.2 x 350mm
- Stem
- GT 3D Forged Alloy, 31.8
- Grips
- GT Grip Bar Tape w/Gel, 3.5mm
Wheels & Tires
- Hubs
- (F) Formula CRX-512, 12x100mm / (R) eBikemotion X35+
- Rims
- Alloy Double Wall, 32h
- Spokes
- Stainless Steel, 13g
- Tires
- WTB Nano Comp, 700 x 40, Tubeless Ready
Pedals
- Pedals
- Sold separately
E-System
- Charger
- X35 Charger
- Motor
- MAHLE ebikemotion drive unit
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Carbon inspection
Tap test the frame, fork, seatpost, and bars for cracks; verify no impact damage near dropouts.
Inspection
Brake hoses & cables
Check hydraulic line bleed, cable housing wear, and confirm rotors are within spec.