Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
BMC
2021 BMC Alpenchallenge AMP AL CITY FOUR
Value Guide market data · 2021 BMC Alpenchallenge AMP AL CITY FOUR
12-month trend
3%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 BMC Alpenchallenge AMP AL CITY FOUR
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Alpenchallenge model years
2021 Alpenchallenge AMP AL CITY FOUR lineup
Overview
About this bike
2021 BMC Alpenchallenge AMP AL CITY FOUR value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- Alpenchallenge AMP Premium Auminium, Flat Mount, 12x100mm thru-axle
- Frame
- Alpenchallenge AMP, Flat Mount, 12 x 142mm thru-axle
Drivetrain
- Groupset
- 2021 BMC Alpenchallenge AMP AL CITY FOUR
- Crankset
- Shimano CR-E80
- Chain
- Shimano HG-54
- Rear Derailleur
- Shimano Deore
- Cassette/Rear Cogs
- Shimano HG-50-10, 11-36T
- Chainrings
- 38T
- Shifters
- Shimano Deore
Brakes
- Brakes
- Shimano MT500 (180/160)
Cockpit
- Saddle
- Selle Royal 2058DRN
- Stem
- BMC RSM 01
- Handlebars
- BMC LSB 02
- Seat Post
- BMC LSP 03
Wheels & Tires
- Hubs
- Formula, Thru Axle (12mm)
- Tires
- Vittoria Revolution Tech, 37mm
Pedals
- Pedals
- Sold separately
E-System
- Battery
- Shimano STEPS BT-E8014 418Wh
- Motor
- Shimano STEPS E-6100 250W, 60Nm output
Accessories
- Accessories & Extras
- Supernova Mini 2 Front Light, Integrated Rear Light – Fenderset – Kickstand Ready (mounting plate included)
- Rims/Wheels
- DT Swiss R500
- Color
- Brown
Weight & Sizing
- Size
- Small / Medium / 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
Battery health
Request battery cycle count and any diagnostic report; older packs lose range and capacity.
Inspection
Motor warranty
Verify motor warranty status and any firmware updates from the manufacturer dealer.