Conquers new mountains
More dynamic and range, but less weight
Shimano's EP8 e-drive offers dynamic power and a lightweight system that supports the JAM² 7.8's agile geometry. Furthermore, our specially developed, integrated, yet removable battery supports your super long rides with 720 Wh. Additionally, a USB C port on the top tube gives you the opportunity to charge your devices.
Optimized kinematics for strong progression
With the upgrade of our well-known F.O.L.D. kinematics, your JAM² 7.8 is ready to shred even more. We kept the well-liked sensitivity of the F.O.L.D. but changed the positioning of our kinematics within the frame for strong bottom-out resistance. The characteristics are completely progressive which results in a chassis that offers a lot of stability in rough terrain. Especially e-mountain bikes with their additional weight of motor and battery benefit from more progression. This allows you to handle any trail while the chassis still provides comfort for long laps. Furthermore, the lower standover of the JAM² 7.8 gives you more space to play on the trail.
More fun on the trails
Riding performance first. The JAM² 7.8 will make your ride better – every time. An agile, nimble geometry in a slim, compact design will push you over all kind of trails whether technical or flow. The FLIP CHIP at your JAM² 7.8's linkage can be used to adjust your geometry to an even more aggressive riding style. The small adjustment of the head angle from 65,5° to 65° changes your whole set-up goal making it even more downhill-oriented. Additionally, the specially developed C.I.S. (Cockpit Integration Solution) design ensures a clean cockpit and constantly seamless shifting and braking. All cables run from the handlebar into the stem and through the headset into the frame. On top, all your essentials fit in the tool bag between top and down tube.
|Stem Length (MM)||50||50||50||50|
|Seat post length (MM)||390||480||480||480|
|A||Seat tube length (MM)||390||420||450||450|
|B||Effective Top Tube (MM)||572||602||637||671|
|C||Head Tube Angle (°)||65||65||65||65|
|D||Effective Seat Tube Angle (°)||76||76||76||76|
|E||Chainstay length (MM)||448||448||448||448|
|F||Bottom bracket drop (MM)||25||25||25||25|
|G||Head Tube Length (MM)||105||110||130||150|
|H||Fork construction height (MM)||561||561||561||561|
|I||Pre-raked fork (MM)||44||44||44||44|
|J||Wheelbase length (MM)||1192||1224||1262||1301|