KTM Macina Scarp SX: suspension setup & specs

Manufacturer data retrieved on 26 September 2026 · 5 builds · Bike type: Full-suspension e-MTB

The KTM Macina Scarp SX is an e-MTB for trail and touring with 140 mm of fork travel and 140 mm at the rear. It is powered by Bosch PERFORMANCE SX BDU3144 up to 60Nm. This page lists the 5 current builds with fork, shock and shock size and gives matching starting values for SAG and tyre pressure.

Calculate the setup for your KTM Macina Scarp SX →

All builds

Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, motor, weight and price according to the manufacturer. Wheel size: 29.

Build	Fork	Shock	Shock size	Rear travel	Motor	Weight	RRP	Calculator
Elite	RockShox Recon Gold RL (140 mm)	RockShox Deluxe Select+	230x60	140 mm	Bosch PERFORMANCE SX BDU3144 up to 60Nm 400 Wh	20.2 kg	–	Setup →
Exonic	FOX 34 Float (140 mm)	FOX Float Factory 2-Pos	230x60	140 mm	Bosch PERFORMANCE SX BDU3144 up to 60Nm 400 Wh	17.3 kg	–	Setup →
Master Di2	FOX 34 Float (140 mm)	FOX Float Performance 2Pos	230x60	140 mm	Bosch PERFORMANCE SX BDU3144 up to 60Nm 400 Wh	19.4 kg	–	Setup →
Prestige Di2	FOX 36SL Float (140 mm)	FOX Float Factory 2-Pos	230x60	140 mm	Bosch PERFORMANCE SX BDU3144 up to 60Nm 400 Wh	17.9 kg	–	Setup →
Prime	FOX 34SC Float (140 mm)	FOX Float Factory 2-Pos	230x60	140 mm	Bosch PERFORMANCE SX BDU3144 up to 60Nm 400 Wh	17.8 kg	–	Setup →

How it compares

With 140 mm of fork travel, the KTM Macina Scarp SX is on the shorter side; the median of the 101 comparable bikes in the “e-MTB for trail and touring” category is 150 mm. Travel is the same front and rear at 140 mm each. On travel, it slots in between the KTM Macina Chacana and the KTM Macina Kapoho in the KTM range.

The KTM Macina Scarp SX does well on weight: 17.3 kg for the Exonic build is 6.1 kg below the median of comparable bikes (23.4 kg). There are 2.9 kg between the lightest and the heaviest build. Depending on the build, fork and shock come from FOX and RockShox. In total, 4 different forks are used, from the RockShox Recon Gold RL to the FOX 34SC Float. It is powered by Bosch PERFORMANCE SX BDU3144 up to 60Nm with a 400 Wh battery. KTM specifies a maximum system weight of 118 kg. Subtracting roughly 21 kg for the bike leaves about 97 kg for rider, clothing, backpack and luggage.

Setup notes for this spec

Fork (RockShox Recon Gold RL): 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.
Air shock (RockShox Deluxe Select+): measure SAG in your riding position, ideally with a helper holding the bike. Cycle the shock a few times after every pressure change.
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 KTM Macina Scarp SX

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 KTM specifies its own target SAG for your model, that takes priority.

140 mm fork, 60.0 mm shock stroke (all builds)

Riding style	Fork SAG	Shock SAG
XC / touring	17 % = 24 mm	24 % = 14.4 mm on the shock shaft
Trail	20 % = 28 mm	28 % = 16.8 mm on the shock shaft
Enduro / rough	22 % = 31 mm	30 % = 18.0 mm on the shock shaft
Bike park	20 % = 28 mm	27 % = 16.2 mm on the shock shaft

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

Tyre pressure starting values

For 2.44″ wide tyres, tubeless with a trail casing, including the e-MTB surcharge. With an inner tube about 0.2 bar (2.9 psi) more, with an insert about 0.1 bar (1.5 psi) less. Stock tyres: Maxxis Forekaster EXO/TR 3C MaxxTerra 62-622 / Maxxis Forekaster EXO/TR 3C MaxxTerra 62-622; Schwalbe Wicked Will Evo SuperGround TLE 62-622 / Schwalbe Wicked Will Evo SuperGround TLE 62-622.

Ready-to-ride weight	Front	Rear
60 kg	1.48 bar (21 psi)	1.68 bar (24 psi)
70 kg	1.60 bar (23 psi)	1.80 bar (26 psi)
80 kg	1.72 bar (25 psi)	1.92 bar (28 psi)
90 kg	1.84 bar (27 psi)	2.04 bar (30 psi)
100 kg	1.96 bar (28 psi)	2.16 bar (31 psi)
110 kg	2.08 bar (30 psi)	2.28 bar (33 psi)
120 kg	2.20 bar (32 psi)	2.40 bar (35 psi)

Air pressure in the fork and shock

The sticker on the fork (or on the shock) and the manufacturers’ setup charts give you a first pressure. Our calculator is more precise and suggests rebound too – always check the result via SAG.

Note: all values without guarantee. Specification can vary by model year, frame size and market – if in doubt, the type plate, the manual and KTM’s information apply. Never exceed maximum pressures.