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Enduro Suspension Tuning & maintenance of Enduro forks, shocks, etc


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Old 03-14-2019, 07:56 PM
ECRider ECRider is offline
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Default Excess Front Wheel Side-Play 2018 GP300

My forks seem to be having excess clearance of approx 1-2 mm between the fork lugs & the wheel spacers giving the impression that the front wheel bearings are worn, when the bearings are actually OK.

This is after following the routine procedure of reinstalling the front wheel into the KYB forks by torquing the axle nut with the opposite brake side fork axle clamps tightened, followed by tightening the brake side clamps, loosening opposite side clamps & bouncing the forks with brake on to true the wheel, then re-tightening the opposite brake side clamps.

Sure I can re-tighten the axle nut to close the clearance between the wheel spacers but then this may promote fork binding.
Anybody else notice this?
Maybe I need wider wheel spacers.


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Old 03-15-2019, 12:33 AM
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shawbagga shawbagga is offline
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Lightly snug/tighten axle nut. Bounce forks half a dozen times to centre axle/lugs. Tighten RHS(non brake side) fork lug. Tighten axle nut. Tighten LHS fork lug. The end.
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Old 03-18-2019, 11:23 PM
ECRider ECRider is offline
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Thanks. I tried Shawbaggas method when changing out the mousse on the front tyre on the week-end & no side-play.
Haven't had this issue using my previously described method on plenty of other bikes though.
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GG GP300 18
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GG EC 450, GG EC 250 08, KTM 525 EXC 06, KTM 400 EXC 01, XR400 97, VTR1000 98, VFR750 95, Husaberg FE400 96, RMX250 91, Maico 490 84, IT250J 81, RM250C2 79, Bultaco Alpina 250 77 - All sold
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Old 03-19-2019, 12:17 AM
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Not sure with 18 setup, but fat end of axle should be able to be slid into clamp back to front. Ie. If you smacked the end with an 'ammer putting it in in a rush at some stage, it will get a raised edge which will stop it going home fully.
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Old 03-19-2019, 06:00 PM
ECRider ECRider is offline
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Mostly I just tap the axle in by hand. With the front wheel out, I like to check the axle slides freely between the lugs to get each fork height through the triple clamps set correctly.
I did previously have to polish up the end of the non-brake side axle with fine emery paper next to the pull handle (ie on GP model) as it was binding in the lug.
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GG GP300 18
KTM 350EXC 17

GG EC 450, GG EC 250 08, KTM 525 EXC 06, KTM 400 EXC 01, XR400 97, VTR1000 98, VFR750 95, Husaberg FE400 96, RMX250 91, Maico 490 84, IT250J 81, RM250C2 79, Bultaco Alpina 250 77 - All sold
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