Uproc EVO:X 2026
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.
The Uproc EVO:X is Flyer's carbon e-enduro, built around the latest Bosch Performance Line CX Gen 5 motor (100 Nm) with an integrated 800 Wh battery and the option of a 250 Wh Bosch PowerMore range extender. Travel is generous at 170 mm rear, paired with a 170 to 180 mm fork depending on trim, and a mullet wheel layout pairs a 29 inch front with a 27.5 inch rear.
Geometry is firmly in modern enduro territory: a 63.8 degree head angle, 75.9 degree effective seat angle, a 445 mm chainstay across every size and a low 30 mm bottom bracket drop. Reach runs from 465 mm on the combined S/M up to 540 mm on the XXL, with wheelbases stretching to 1348 mm, so the larger frames are long and stable rather than nimble.
The two current trims share the same frame, motor and 800 mm bar. The 4.10 keeps costs down with a RockShox ZEB R fork, SR Suntour shock, Shimano Deore 12 speed mechanical shifting and Shimano four piston brakes. Stepping up to the 8.50 buys a Fox 38 Performance fork with 180 mm travel, a Fox Float X2 shock, SRAM GX Eagle Transmission electronic shifting, Shimano XT brakes and a DT Swiss H1900 wheelset. Both come with permanently fitted seat stay lights and a MonkeyLink front light interface, plus long chainstay and main bearing protection.
Geometry · hover a row to highlight the measurement on the bike
| L | XL | XXL | S/M | |
|---|---|---|---|---|
| Reach | 490 mm | 515 mm | 540 mm | 465 mm |
| Stack | 650 mm | 659 mm | 668 mm | 641 mm |
| Chainstay | 445 mm | 445 mm | 445 mm | 445 mm |
| Headtube Angle | 63.8° | 63.8° | 63.8° | 63.8° |
| Seattube Angle (eff) | 75.9° | 75.9° | 75.9° | 75.9° |
| Wheelbase | 1289 mm | 1319 mm | 1348 mm | 1260 mm |
| Headtube | 115 mm | 125 mm | 135 mm | 105 mm |
| Standover | 763 mm | 761 mm | 760 mm | 761 mm |
| Front Centre | 844 mm* | 874 mm* | 903 mm* | 815 mm* |
Trims · 2
4.10 | 8.50 | |
|---|---|---|
| Motor | Bosch Performance Line CX Gen 5 · 100 Nm · all trims | |
| Battery | Bosch PowerTube 800 · 800 Wh · all trims | |
| Travel F/R | 180/170 mm · all trims | |
| Frame | Carbon · all trims | |
| Fork | RockShox ZEB R, 15 x 110 mm, 170 mm | Fox 38 Float Performance E-Optimised, 15 x 110 mm, 180 mm |
| Shock | SR Suntour Triair2 TR 2CR, 205 x 65 mm, 170 mm | Fox Float X2 Performance, 205 x 65 mm, 170 mm |
| Headset | Acros AIF-604 · all trims | |
| Stem | SATORI Ursa, 35 x 35 mm, 0° · all trims | |
| Handlebar | FLYER Alloy, 800 mm, 8°, 35 mm · all trims | |
| Grips | Ergon GDH Team black · all trims | |
| Saddle | Fizik Aidon · all trims | |
| Seatpost | X-Fusion Manic LC dropper post, 200 mm, 34.9 mm | X-Fusion Manic Dropper Post, 200 mm, 34.9 mm |
| Brakes | SHIMANO BR-MT520 4 Piston, levers SHIMANO BL-MT501 | SHIMANO XT BR-M8120 4 Piston, levers SHIMANO XT BL-M8100 |
| Rear derailleur | SHIMANO Deore, 12 speed, 10-51t | Sram GX Eagle Transmission, 12 speed, 10-52t |
| Crank | SAMOX EC-53 · all trims | |
| Shifters | SHIMANO Deore SL-M6100-R, 12 speed | Sram GX Eagle AXS, 12 speed |
| Cassette | SHIMANO Deore CS-M6100, 12 speed, 10-51t | Sram CS XS1275 T-Type, 12 speed, 10-52t |
| Drivetrain | SHIMANO Deore, 12 speed, 10-51t; SAMOX EC-53; SHIMANO Deore SL-M6100-R, 12 speed; SHIMANO Deore CS-M6100, 12 speed, 10-51t | Sram GX Eagle Transmission, 12 speed, 10-52t; SAMOX EC-53; Sram GX Eagle AXS, 12 speed; Sram CS XS1275 T-Type, 12 speed, 10-52t |
| Wheels | DT Swiss H 552, 30 mm (front and rear) | DT Swiss H1900 wheelset, 30 mm |
| Weight | 25 kg · all trims | |
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