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All our frames and forks are tested continually to meet or exceed (in some cases, well exceed) EN standards 14764, 14765, 14766 and 14781 as well as the new ISO 4210 standards. We conduct these tests at our frame manufacturing facilities, but we also use EN accredited testing laboratories such as Intertek and SGS to verify the results of our own tests. If these tests aren’t telling us everything we want to know about our bikes, we increase the loads and cycles, or we determine another way to test. Where current hydraulic testing machines, jigs and hardware aren’t up to the task of emulating some of the forces and impacts our bikes might be subject to, we’ve designed our own.
We relentlessly cycle test for fatigue from pedaling and torsional forces on every single frame size, with deflection tests for stiffness at every point of the frame. Brutal impact tests with massive weights dropped on fixed frames or forks are performed. Then reversed, with weights attached to the frame, the frame hoisted to a given height depending upon product type, then released.
This destructive testing is enormously instructive and important. And it is in continual process. But it’s our ongoing non-destructive testing of frames and forks fresh off the factory floor that’s just as vital.
For our carbon fiber frames, EVERY frame is weighed to make sure it’s neither resin rich nor resin deficient. We also measure the stiffness of each frame in 6 critical areas as a check on lay-up production. Each deflection test must fall within 5% of the standards our machine and field-testing have established. This weighing and stiffness deflection testing guarantees every single frame we produce meets all Jamis manufacturing protocol and will
deliver the ride qualities we defined and demand.
UPGRADES FROM X.26
Shimano 3x8-speed drivetrain
Tektro mechanical disc brakes
Shimano EF-51 shifters/brake levers
Alex TD25 disc-specific rims
UPGRADES / CHANGES FROM 2016
Shimano TY-301 chainwheel
CST Patrol 2.25" tires
|Frame||6061 aluminum main tubes, over-sized seat tube, replaceable derailleur hanger|
|Fork||RST Gila 26", coil spring, external preload adjustor, 28mm stanchions, aluminum lowers, 80mm travel|
|Wheels||Alex TD25 double-wall disc-specific rims with reinforced spoke bed, 32H, alloy 6-bolt disc hubs, stainless spokes|
|Tires||CST Patrol, 26 x 2.25”|
|Derailleurs||Shimano TX800 rear and M190 front|
|Shift levers||Shimano EF51, EasyFire Plus, 3x8-speed|
|Chain||KMC Z7, 8-speed|
|Cassette||Shimano HG20, 8-speed, 12-32T|
|Crankset||Shimano TY-301, 42/34/24T rings, 170mm|
|BB Set||Sealed cartridge|
|Pedals||ATB platform, hi-impact resin|
|Brakeset||Tektro M280 mechanical disc, 160mm rotors and Shimano levers|
|Handlebar||Jamis XC riser, 25.4 x 20mm rise x 620mm|
|Stem||Jamis XC alloy threadless, 25.4 x 15º rise x 75mm|
|Seat Post||Jamis alloy micro-adjust, 31.6 x 350mm|
|Saddle||Jamis ATB Sport/Sport Women's, SL cover, protective front and rear guards|
|Sizes||M: 13”, 15" F: 12”, 14"|
|Color||M: Gloss Black or Cosmo Blue S/O: Gloss Black|
|SIZE||TOP EFFECTIVE||HEAD ANGLE||SEAT ANGLE||CHAIN STAY||WHEEL BASE||BB DROP||HEAD TUBE||STANDOVER|
FIT & SIZING