Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
BMC
2021 BMC Twostroke 01 FOUR
Value Guide market data · 2021 BMC Twostroke 01 FOUR
12-month trend
12%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 BMC Twostroke 01 FOUR
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Twostroke model years
2021 Twostroke 01 FOUR lineup
Overview
About this bike
2021 BMC Twostroke 01 FOUR value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- Rock Shox Judy Silver TK, 100mm
- Frame
- Twostroke 01 Premium Carbon with Tuned Compliance Concept XC, Fully Guided Internal Cable Routing, PF92 bottom bracket, Post Mount Disc, 12 x 148mm Boost Thru-Axle
Drivetrain
- Groupset
- 2021 BMC Twostroke 01 FOUR
- Crankset
- Shimano FC-MT510-1
- Chain
- Shimano Deore 12 spd
- Rear Derailleur
- Shimano Deore Shadow Plus 12 spd
- Cassette/Rear Cogs
- Shimano Deore 12 spd 10-51T
- Chainrings
- 32T
- Shifters
- Shimano Deore Shadow Plus 12 spd
Brakes
- Brakes
- Shimano BR-MT200 / Shimano SM-RT30 Rotors (160/160 S-M, 180/160 L-XL)
Cockpit
- Saddle
- Fizik Antares R7
- Stem
- Forged 6061 Alloy
- Handlebars
- BMC MFB03 Alloy 750mm
- Seat Post
- MSP03 - 27.2mm - 0mm offset
Wheels & Tires
- Hubs
- Shimano HB-MT400-B/FH-MT410-B
- Tires
- Vittoria Barzo 2.25
Pedals
- Pedals
- Sold separately
Accessories
- Rims/Wheels
- Alex MD25, 25mm
- Color
- Carbon/White/Grey
Weight & Sizing
- Size
- Small / Medium / Large / X-Large
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
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.