Motorcycle Shock Absorber Stop End Caps

At the base of your motorbike damper's body is a hard metal cover around the main shock shaft - this end cap seals the area out to the cylinder bore of the shock body. It isn't actually sealing the shock absorber pressure in - there is an oil seal head assembly behind it - but it helps protect that delicate seal case from rock strikes and corrosive mud build up, and transfers the force of bottoming out on hard landings.

Your bump stop thumps pretty hard, so check regularly for cracks or deformation, especially if you are racing hard offroad or have reduced your suspension travel with shock lowering spacers - because they are so hidden away these bottom covers often get neglected, leading to bigger rebuilds later.

These solid lower stopper caps helps reinforce shock bodies too, allowing for thinner casting walls and better heat transfer. Your shock absorber gets much hotter than you'd think - watch our WR250R Shock rebuild video to find out - so anything that helps cool an offroad shock gives more consistent damping and a better ride.

We offer OEM Kayaba suspension parts for most KYB factory motorcycle rear coilovers - have a look in our special shock tools section to help you service yours.

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At the base of your motorbike damper's body is a hard metal cover around the main shock shaft - this end cap seals the area out to the cylinder bore of the shock body. It isn't actually sealing the shock absorber pressure in - there is an oil seal head assembly behind it - but it helps protect that delicate seal case from rock strikes and corrosive mud build up, and transfers the force of bottoming out on hard landings.

Your bump stop thumps pretty hard, so check regularly for cracks or deformation, especially if you are racing hard offroad or have reduced your suspension travel with shock lowering spacers - because they are so hidden away these bottom covers often get neglected, leading to bigger rebuilds later.

These solid lower stopper caps helps reinforce shock bodies too, allowing for thinner casting walls and better heat transfer. Your shock absorber gets much hotter than you'd think - watch our WR250R Shock rebuild video to find out - so anything that helps cool an offroad shock gives more consistent damping and a better ride.

We offer OEM Kayaba suspension parts for most KYB factory motorcycle rear coilovers - have a look in our special shock tools section to help you service yours.