PROX Front Wheel Bearing Kit for SHERCO, GAS GAS and APRILIA 1994-2026

The PROX avant 23.S110070 wheel bearing kit is designed for SHERCO 250, SCF 500, SE 125, SE 250, SE 300, SEF 250, SEF 300, SEF 450, SEF 500, GAS GAS EC 125, EC 200, EC 250, EC 300, MC 125, MC 250, MX 250 and APRILIA CLIMBER 280 from 1994 to 2026. Housed in the hub, wheel bearings are protected only by their seals. Once water gets in, they rust fast: the wheel develops play, the hub heats up and the bearing can end up seizing or spinning in its housing.

Specifications

• Brand: PROX
• Manufacturer part number: 23.S110070

When to replace it?

• Wheel play: with the bike on a stand, grab the wheel at the top and bottom and rock it.
• With the axle out, bearings that turn with tight spots or a grinding noise.
• Brake disc rubbing on and off against the pads.
• Hub seals hardened or torn, rust around the axle.

Check the wheels for play after every pressure wash or ride through water, and replace the bearings at the slightest play or tight spot. Always change all the bearings in a wheel at the same time, together with their seals: a new bearing fitted next to a worn one won't last.

Fitting tips

1. Remove the wheel, then the side spacers and the hub seals.
2. Drive the bearings out with an expanding bearing puller, or from inside the hub by pushing the centre spacer aside and tapping alternately on each side of the inner race.
3. Clean the hub, warm it slightly (around 80 °C, with a heat gun) and fit the new bearings, pressing only on the outer race.
4. Put the centre spacer back between the bearings, then fit new seals packed with waterproof grease.
5. Refit the wheel, torque the axle to the figure in the manual and check that the wheel spins freely, with no play.

Why PROX?

ProX Racing Parts has been supplying off-road riders since 1975 from its headquarters near Amsterdam. Beyond the engine and clutch, its catalogue covers chassis wear parts: wheel bearings, seals and spacers.

Spare parts and items to plan

• Grease : MOTUL 400 g
• Wheel seals : PIVOT WORKS · HAAN WHEELS
• Wheel spacers : HAAN WHEELS · SKF

Frequently asked questions

Should I change the bearings on both sides?
Yes: replace all the bearings in the wheel together, they have the same amount of wear. It's also the moment to fit new wheel seals.

What is the centre spacer for?
It keeps the bearings the right distance apart when you tighten the axle. If it's left out or badly positioned, the bearings get crushed sideways and only last a few hours.

Why do my bearings wear out so fast?
A pressure-washer jet aimed at the hub, worn seals or scored spacers let water in. Change the seals along with the bearings and avoid aiming at the hubs when you wash the bike.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
APRILIA CLIMBER 280 1994
GAS GAS EC 125 2003
GAS GAS EC 125 2002
GAS GAS EC 125 2001
GAS GAS EC 200 2003
GAS GAS EC 200 2002
GAS GAS EC 200 2001
GAS GAS EC 200 2000
GAS GAS EC 200 1999
GAS GAS EC 250 2003
GAS GAS EC 250 2002
GAS GAS EC 250 2001
GAS GAS EC 250 2000
GAS GAS EC 250 1999
GAS GAS EC 250 1998
GAS GAS EC 250 1997
GAS GAS EC 250 1996
GAS GAS EC 300 2003
GAS GAS EC 300 2002
GAS GAS EC 300 2001
GAS GAS EC 300 2000
GAS GAS EC 300 1999
GAS GAS MC 125 2003
GAS GAS MC 125 2002
GAS GAS MC 125 2001
GAS GAS MC 250 2003
GAS GAS MC 250 2002
GAS GAS MC 250 2001
GAS GAS MC 250 2000
GAS GAS MC 250 1999
GAS GAS MC 250 1998
GAS GAS MC 250 1997
GAS GAS MC 250 1996
GAS GAS MX 250 2003
GAS GAS MX 250 2002
SHERCO 250 2009
SHERCO SCF 500 2020
SHERCO SCF 500 2019
SHERCO SE 125 2026
SHERCO SE 125 2025
SHERCO SE 125 2024
SHERCO SE 125 2023
SHERCO SE 125 2022
SHERCO SE 125 2021
SHERCO SE 125 2020
SHERCO SE 125 2019
SHERCO SE 125 2018
SHERCO SE 250 2026
SHERCO SE 250 2025
SHERCO SE 250 2024
SHERCO SE 250 2023
SHERCO SE 250 2022
SHERCO SE 250 2021
SHERCO SE 250 2020
SHERCO SE 250 2019
SHERCO SE 250 2018
SHERCO SE 250 2017
SHERCO SE 250 2016
SHERCO SE 250 2015
SHERCO SE 250 2014
SHERCO SE 300 2026
SHERCO SE 300 2025
SHERCO SE 300 2024
SHERCO SE 300 2023
SHERCO SE 300 2022
SHERCO SE 300 2021
SHERCO SE 300 2020
SHERCO SE 300 2019
SHERCO SE 300 2018
SHERCO SE 300 2017
SHERCO SE 300 2016
SHERCO SE 300 2015
SHERCO SE 300 2014
SHERCO SEF 250 2026
SHERCO SEF 250 2025
SHERCO SEF 250 2024
SHERCO SEF 250 2023
SHERCO SEF 250 2022
SHERCO SEF 250 2021
SHERCO SEF 250 2020
SHERCO SEF 250 2019
SHERCO SEF 250 2018
SHERCO SEF 250 2017
SHERCO SEF 250 2016
SHERCO SEF 250 2015
SHERCO SEF 250 2014
SHERCO SEF 300 2026
SHERCO SEF 300 2025
SHERCO SEF 300 2024
SHERCO SEF 300 2023
SHERCO SEF 300 2022
SHERCO SEF 300 2021
SHERCO SEF 300 2020
SHERCO SEF 300 2019
SHERCO SEF 300 2018
SHERCO SEF 300 2017
SHERCO SEF 300 2016
SHERCO SEF 300 2015
SHERCO SEF 300 2014
SHERCO SEF 450 2026
SHERCO SEF 450 2025
SHERCO SEF 450 2024
SHERCO SEF 450 2023
SHERCO SEF 450 2022
SHERCO SEF 450 2021
SHERCO SEF 450 2020
SHERCO SEF 450 2019
SHERCO SEF 450 2018
SHERCO SEF 450 2017
SHERCO SEF 450 2016
SHERCO SEF 450 2015
SHERCO SEF 450 2014
SHERCO SEF 500 2025
SHERCO SEF 500 2024
SHERCO SEF 500 2023
SHERCO SEF 500 2022
SHERCO SEF 500 2021
SHERCO SEF 500 2020
SHERCO SEF 500 2019