Bicycle Archive · Specification reportBicycle Archive · Specification reportVelopedia Archive ID 900001732
| Model year | 2021 |
|---|---|
| Brand | Jamis |
| Model | XR20 |
| Bicycle type | Youth |
| Archive ID | 900001732 |
| Original MSRP | $429.95 |
| Colors | Gloss Black, Limelight, Raspberry |
| Sizes | 11″ B |
| Weight | 24.00 lbs |
| Frame construction | Enduro frame design, 6061 aluminum tubes, tapered/ ovalized top tube, down tube & stays |
|---|---|
| Frame material | Aluminum |
| Fork | Unicrown, hi-tensile steel, 28.6 steerer |
| Fork material | Steel |
| Component group | Shimano TY300 rear with protective guard |
|---|---|
| Shifters | Shimano RevoShift 35, 6-speed |
| Rear derailleur | Shimano TY300 rear with protective guard |
| Crankset | Forged alloy crank, 127mm, with 36T chainring and protective double-sided chainguard |
| Bottom bracket | Sealed cartridge |
| Cassette | 6-speed, 14-28T |
| Chain | KMC Z33 |
| Pedals | MTB platform, hi-impact resin |
| Brakes | Alloy linear pull type with Tektro youth specific levers |
|---|
| Headset | Aheadset, 1 1/8” |
|---|---|
| Handlebar | MTB alloy riser, 6 ̊ sweep x 20mm rise x 560mm wide |
| Stem | MTB alloy threadless, 15 ̊ rise x 60mm extension |
| Saddle | Jamis ATB Youth |
| Seatpost | Alloy pillar, 27.2 x 300mm, with 31.8mm alloy clamp |
| Wheels | Alloy 36H black anodized rims with brushed brake tracks, alloy MTB hubs with nutted axles, 14G black electroplated spokes |
|---|---|
| Front tire | CST MTB, 20 X 1.95” |
| Rear tire | CST MTB, 20 X 1.95” |
| Wheel size | 20 |
| Effective top tube | 455 mm |
|---|---|
| Head tube | 90 mm |
| Head-tube angle | 70° |
| Seat-tube angle | 70° |
| Chainstay / rear center | 385 mm |
| Wheelbase | 882 mm |
| Bottom-bracket height | 240 mm |
| Standover height | 516 mm |
| Fork offset / rake | 45 mm |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 14, 2026.