These covers are used for installation on bicycle pedal bearings to prevent dust, dirt, and water from entering the crankshaft.
The installation diameter of this dust cover is 21mm, suitable for almost all common cranks. The installation is very simple, just press it into the crank hole to complete the installation.
Its overall size is 24x9.5mm, with an inner diameter of 19.2mm. The black outer shell not only provides dust protection but also serves as a decorative element, making the bicycle look more aesthetically pleasing.
Its material is plastic, solid and durable, with a protruding groove design at the installation site, which is stable and not easy to fall off after installation. You can buy it with confidence.
Package: 4x dust cover

William A Butler (comprador verificado) –
Great Find!
This item was reasonably priced and fit my bicycle perfectly!
William Cruz (comprador verificado) –
If only they were ‘metal’
The covers are exactly what I’m looking for but, if they were of a more stronger material I’d be happy. Anyway they the purpose the were designed for..
Peppo (comprador verificado) –
super
super super
Thomas Hagins (comprador verificado) –
Make sure to measure crank holes
Perfect fit and easy to install
Mikael Juhl (comprador verificado) –
Cykel
Mycket bra
D. Witt (comprador verificado) –
Junk
These are thin plastic and fairly brittle. Two of the four arrived with damaged skirts, and a third broke in half as I tapped it into place with a rubber mallet. I managed to install the one good one and the least damaged one, but I don’t have any faith that I’ll be able to take them off and reinstall them the next time I remove or tighten the cranks. I didn’t bother with a refund since I broke two of them, and I wouldn’t want a replacement anyway. My fault for going cheap on a already cheap part.