Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
2002 Diamondback Jr. Viper
Value Guide market data · 2002 Diamondback Jr. Viper
12-month trend
— %
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2002 Diamondback Jr. Viper
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Jr. model years
2002 Jr. Viper lineup
Overview
About this bike
2002 Diamondback Jr. Viper value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork Material
- Hi-tensile steel, unicrown crown
- Frame Construction
- TIG-welded
- Frame Tubing Material
- Hi-tensile steel
- Rear Shock
- Not applicable
Drivetrain
- Groupset
- 2002 Diamondback Jr. Viper
- Bottom Bracket
- Steel
- Cassette
- 1-speed, 18 teeth
- Chain
- KMC Z-410, 1/2 x 1/8inch
- Component Group
- Not applicable
- Crankset
- 1-piece 5 1/2inch, 36 teeth
- Shifters
- Not applicable
Brakes
- Brakes
- Aluminum linear-pull rear brakes, aluminum rear levers
Cockpit
- Handlebar
- Steel BMX
- Stem
- Aluminum 4 bolt
- Headset
- 1inch steel
- Saddle
- Diamondback BMX
- Seatpost
- Steel, chrome plated, 25.4mm diameter
Wheels & Tires
- Hubs
- Front: steel, nutted, Rear: steel, coaster brake
- Rims
- Steel, 36-hole
- Spoke Brand
- Stainless steel, 14ga. (2.0mm) straight gauge
- Spoke Nipples
- Brass nipples
- Tires
- Front: 20 x 2.125inch Kenda K-50, Rear: 20 x 1.75inch Kenda K-50
Pedals
- Pedals
- Wellgo LU-205
Accessories
- Colors
- Black, Burn
- Extensions
- Not applicable
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.