Skip to main content

Jamis XR20

Jamis XR20
  • Color: Ano Black
  • Color: Inferno
  • Color: Raspberry
Size: 20-inch


Every Jamis youth bike uses size-specific items like grips, saddles and cranks that enhance comfort and control by providing the best possible bike fit. We focus on designing frames with low stand-overs to take much of the awkwardness out of getting on board and dismounting after. We trim as much weight as we can with lightweight aluminum frames on many of the youth models and use aluminum parts where possible (the limiting factor here is working within a youth bike appropriate price point) to work towards that make-it-as-light-as-possible goal.


Frame Enduro frame design, 6061 aluminum tubes, tapered/ovalized top tube, down tube & stays
Fork Unicrown, 6061 aluminum, 28.6 Cr-Mo steerer
Headset Aheadset, 1 1/8”
Rims/Wheels Alloy 36H black anodized rims with brushed brake tracks
Hubs Alloy MTB hubs with nutted axles
Spokes 14G nickel-plated spokes
Tires CST MTB, 20 x 1.95”
Crankset Forged alloy crank, 152mm, protective double-sided chainguard
Chainrings 36T
Bottom Bracket Sealed cartridge
Chain KMC Z33
Rear Derailleur Shimano TX300 with protective guard
Cassette/Rear Cogs 6-speed, 14-28T
Shifters Shimano RevoShift 35, 6-speed
Handlebars MTB alloy riser, 6° sweep x 20mm rise x 560mm wide
Tape/Grips Kraton for Grip Shift
Stem MTB alloy threadless, 15° rise x 60mm extension
Brake Levers Alloy short reach levers
Brakes Alloy linear pull type
Pedals MTB platform, hi-impact resin
Saddle Jamis MTB Youth
Seat Post Alloy pillar, 27.2 x 300mm, with 31.8mm alloy clamp

* Subject to change without notice.


Part Numbers

Option UPC MPN
Ano Black / 20-inch 845436076836 07-3623BK
Inferno / 20-inch 845436076843 07-3624RD
Raspberry / 20-inch 845436076850 07-3625RB