Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
2002 Diamondback RM 20
Previous used estimate
$92 - $95
Actual value depends on condition, size, and local demand.
Value Guide market data · 2002 Diamondback RM 20
12-month projected trend
— %
Direction and magnitude, not judgment
vs. category average
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Price over time - 2002 Diamondback RM 20
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Overview
About this bike
2002 Diamondback RM 20 value depends on condition, original build, service history, and current buyer demand.
Specifications
- Category
- Kids
- Component Hubs
- Aluminum
- Component Rims
- Alex Supra B Pro, 36-hole
- Product Family
- RM
- Component Chain
- KMC HP20NP, 1/2 x 3/32inch
- Component Tires
- Front: 20 x 2.125inch Tioga Comp III, Rear: 20 x 1.75inch Tioga Comp III
- Component Pedals
- Aluminum
- Component Saddle
- Diamondback BMX
- Component Headset
- 1 1/8inch threadless aluminum
- Component Brakeset
- Tektro BX-20 linear-pull rear brakes, Tektro Sabre rear levers
- Component Cassette
- 1-speed, 16 teeth
- Component Crankset
- AC Race 16 3pc, 44 teeth
- Component Seatpost
- Aluminum, 27.0mm diameter
- Component Handlebar
- Chromoly BMX
- Component Extensions
- Not applicable
- Component Rear Shock
- Not applicable
- Component Spoke Brand
- Stainless steel, 14ga. (2.0mm) straight gauge
- Component Shift Levers
- Not applicable
- Component Fork Material
- Chromoly, unicrown crown
- Component Spoke Nipples
- Brass nipples
- Component Bb Shell Width
- 68mm English
- Component Bottom Bracket
- AC Euro Sealed Bearing
- Component Handlebar Stem
- Aluminum
- Component Component Group
- Not applicable
- Component Frame Construction
- TIG-welded
- Component Frame Tubing Material
- 7005 aluminum
- Frame Construction
- TIG-welded
- Frame Tubing Material
- 7005 aluminum
- Fork Material
- Chromoly, unicrown crown
- Rear Shock
- Not applicable
- Hubs
- Aluminum
- Rims
- Alex Supra B Pro, 36-hole
- Tires
- Front: 20 x 2.125inch Tioga Comp III, Rear: 20 x 1.75inch Tioga Comp III
- Spoke Brand
- Stainless steel, 14ga. (2.0mm) straight gauge
- Spoke Nipples
- Brass nipples
- Component Group
- Not applicable
- Brakeset
- Tektro BX-20 linear-pull rear brakes, Tektro Sabre rear levers
- Shift Levers
- Not applicable
- Crankset
- AC Race 16 3pc, 44 teeth
- Pedals
- Aluminum
- Bottom Bracket
- AC Euro Sealed Bearing
- BB Shell Width
- 68mm English
- Chain
- KMC HP20NP, 1/2 x 3/32inch
- Seatpost
- Aluminum, 27.0mm diameter
- Saddle
- Diamondback BMX
- Handlebar
- Chromoly BMX
- Extensions
- Not applicable
- Handlebar Stem
- Aluminum
- Headset
- 1 1/8inch threadless aluminum
- Cassette
- 1-speed, 16 teeth
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.