ksv Posted January 4, 2022 Report Share Posted January 4, 2022 Hi, A couple of newbie questions: What code wheel bearings are needed for a 2020 GP model? Having never changed wheel bearings myself before; do you need specialist tools/press to fit them? Or do you just tap them in with a soft hammer? TIA Quote Link to comment Share on other sites More sharing options...
Intotrials Posted January 4, 2022 Report Share Posted January 4, 2022 2 hours ago, ksv said: Hi, A couple of newbie questions: What code wheel bearings are needed for a 2020 GP model? Having never changed wheel bearings myself before; do you need specialist tools/press to fit them? Or do you just tap them in with a soft hammer? TIA I think the GP model have the Tech forks which If I recall are the same spindle size as the rear. So the bearings will be 6004RS, someone else may correct me on this. You can knock the bearings out quite easily by using a long blunt flat screw driver for the first bearing by moving the internal spacer over slightly to one side and then just catching the edge of the bearing to tap out. Once this one is out just use a socket the same size as the spacer to easily tap out the other bearing. To re-fit knock in a bearing one side using a socket that is the same diameter as the bearing outer case then insert the spacer and do the same for the other side. the whole job takes ten minutes provided nothing is too corroded or damaged. Personally I like to flick out one of the rubber seals and fill with water proof grease then re-fit the seal, for added long term lubrication. However the bearings are pretty cheap to buy and simple to fit so its probably a bit over kill. 2 Quote Link to comment Share on other sites More sharing options...
trialsrfun Posted January 4, 2022 Report Share Posted January 4, 2022 (edited) Best practice is to always warm the hub around the bearing using a heat gun to expand it so that the bearing releases easily and the new one pushes fully in with similar ease. If you drive the bearing out without first heating the bearing housing it will likely remove some of the surface by dragging out material where the bearing sits then the new bearing will not be held firmly requiring bearing fit to hold it in place. Sometimes the hub can be ruined by driving the bearing out when cold. To refit the new bearings press in gently while the hub is still warm using a socket whose OD is similar but slightly smaller than the bearings outer diameter, NEVER press on the inner bearing race when replacing only the outer. Edited January 4, 2022 by trialsrfun 2 Quote Link to comment Share on other sites More sharing options...
cascao Posted January 9, 2022 Report Share Posted January 9, 2022 This practice (removing bearing with a drift off center) move bearing crocked what on long therm enlarge hub diameter. Jitsie make a wheel bearing extractor that solve this issue and is able to remove Rear wheel bearing since spacer id is smaller than bearing id. Quote Link to comment Share on other sites More sharing options...
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