Flyer Uproc EVO:X: suspension setup & specs

Manufacturer data retrieved on 27 September 2026 · 6 builds · RRP €6,999 – €12,499 · Bike type: Full-suspension e-MTB

The Flyer Uproc EVO:X is an e-enduro bike with 170–180 mm of fork travel and 165–170 mm at the rear. It is powered by Bosch Performance Line CX GEN4 or Bosch Performance Line CX GEN5 or Bosch Performance Line CX Race LE. Below you will find all 6 current builds with fork, shock and shock size, plus SAG values in millimetres and a tyre pressure table.

Calculate the setup for your Flyer Uproc EVO:X →

All builds

Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, motor, weight and price according to the manufacturer. Wheel size: MX.

Build	Fork	Shock	Shock size	Rear travel	Motor	Weight	RRP	Calculator
G2 4.10	RockShox ZEB R (170 mm)	SR Suntour Triair2 TR 2CR	205x65	170 mm	Bosch Performance Line CX GEN5 800 Wh	25.0 kg	€6,999	Setup →
G1 4.10	RockShox Domain RC (170 mm)	RockShox Deluxe Select	230x65	165 mm	Bosch Performance Line CX GEN4 625 Wh	25.0 kg	€7,399	Setup →
G2 8.50	FOX 38 Float Performance (180 mm)	FOX Float X2 Performance	205x65	170 mm	Bosch Performance Line CX GEN5 800 Wh	25.0 kg	€7,999	Setup →
G1 6.10	FOX 38 Float Rhythm (170 mm)	FOX Float X Performance	230x65	165 mm	Bosch Performance Line CX GEN4 750 Wh	25.0 kg	€8,199	Setup →
G1 8.70	FOX 38 Float Performance (170 mm)	FOX Float X2 Performance	230x65	165 mm	Bosch Performance Line CX GEN4 750 Wh	25.0 kg	€8,999	Setup →
G1 9.50	FOX 38 Float Factory (170 mm)	FOX Float X2 Factory	230x65	165 mm	Bosch Performance Line CX Race LE 750 Wh	25.0 kg	€12,499	Setup →

How it compares

On travel, the Flyer Uproc EVO:X is right where the “e-enduro bike” category usually is: 170–180 mm up front against a median of 170 mm from 56 bikes. Among Flyer’s e-mountain bikes, the Flyer Uproc EVO:X is the model with the most fork travel. The frame is made of carbon.

Flyer quotes 25.0 kg for the G2 4.10 build; that is 1.5 kg more than the 23.5 kg median of 19 comparable bikes. At €6,999 for the G2 4.10 build, pricing is typical for the category (median €6,900). For the G1 9.50 build, Flyer asks €12,499. For suspension, Flyer combines components from FOX, RockShox and SR Suntour. In total, 5 different forks are used, from the RockShox ZEB R to the FOX 38 Float Factory. Drive comes from Bosch Performance Line CX GEN5 or Bosch Performance Line CX GEN4 or Bosch Performance Line CX Race LE, paired with 625–800 Wh of battery capacity. Flyer specifies a maximum system weight of 140 kg. Subtracting roughly 25 kg for the bike leaves about 115 kg for rider, clothing, backpack and luggage.

Setup notes for this spec

Fork (RockShox ZEB R): air goes in through the valve on top of the left leg. After every change, compress the fork firmly a few times before measuring SAG.
Rebound: on FOX and RockShox suspension the rebound adjuster is red. Always count clicks from fully closed (clockwise to the stop) so you can return to any setting.
Shock (SR Suntour Triair2 TR 2CR): get on the bike in your normal riding position, step off carefully and read the O-ring. Always cycle the shock a few times after pumping.
e-MTB: the extra weight mainly affects tyre pressure, which is why the table below already includes a surcharge. SAG is measured just as on a bike without a motor.

Target SAG for the Flyer Uproc EVO:X

The table converts the recommended SAG percentages into millimetres, so you can check them with the O-ring directly on the stanchion and on the shock shaft. Adjust the air pressure until the value is right. If Flyer specifies its own target SAG for your model, that takes priority.

170 mm fork, 65.0 mm shock stroke (G2 4.10, G1 4.10, G1 6.10, G1 8.70, G1 9.50)

Riding style	Fork SAG	Shock SAG
XC / touring	17 % = 29 mm	24 % = 15.6 mm on the shock shaft
Trail	20 % = 34 mm	28 % = 18.2 mm on the shock shaft
Enduro / rough	22 % = 37 mm	30 % = 19.5 mm on the shock shaft
Bike park	20 % = 34 mm	27 % = 17.6 mm on the shock shaft

180 mm fork, 65.0 mm shock stroke (G2 8.50)

Riding style	Fork SAG	Shock SAG
XC / touring	17 % = 31 mm	24 % = 15.6 mm on the shock shaft
Trail	20 % = 36 mm	28 % = 18.2 mm on the shock shaft
Enduro / rough	22 % = 40 mm	30 % = 19.5 mm on the shock shaft
Bike park	20 % = 36 mm	27 % = 17.6 mm on the shock shaft

How to measure SAG is explained in our guide SAG setup.

Tyre pressure starting values

Basis: 2.60″ tyre width, tubeless, trail casing, including the e-MTB surcharge. If you run tubes, add about 0.2 bar (2.9 psi); with an insert, about 0.1 bar (1.5 psi) less is enough. Stock tyres: Onza Aquila GRC 29 x 2.50 / 27,5 x 2,50.

Ready-to-ride weight	Front	Rear
60 kg	1.40 bar (20 psi)	1.60 bar (23 psi)
70 kg	1.52 bar (22 psi)	1.72 bar (25 psi)
80 kg	1.64 bar (24 psi)	1.84 bar (27 psi)
90 kg	1.76 bar (26 psi)	1.96 bar (28 psi)
100 kg	1.88 bar (27 psi)	2.08 bar (30 psi)
110 kg	2.00 bar (29 psi)	2.20 bar (32 psi)
120 kg	2.12 bar (31 psi)	2.32 bar (34 psi)

Air pressure in the fork and shock

You will find a guide value for air pressure on the fork sticker (or on the shock) or in the suspension makers’ charts. Our calculator also takes riding style and rebound into account. In the end, measured SAG is what counts.

Note: no guarantee is given. Specs can vary by model year, size and country; the type plate, the manual and Flyer are authoritative. The maximum pressures of fork, shock, tyres and rims always apply.