Grindrocks 46mm/100A Skins + Shells a huge groove and is

a huge groove and is perfect for streetskating

not seperately

The size of the frame does only vary in lenth

but with a redesigned inner race and two labyrinth seals to keep dirt out even better than before

Buckles that are mounted like this are called SBM3 which stands for Standard Buckle Mount with a total of 3 bolts

Grindrocks 46mm/100A Skins + Shells a huge groove and isUndercover grindrocks grindwheels for better grind control on your grinds. The material is UHMW Diamond plastic, this is the fastest plastic available for grinding. The Rocks need bearings but you can use old onces since they do not touch the ground. Diameter: 46mm. There are 4 grindrocks in one set.