TOKEN 6902 TBT, 15x28x7

TBT is the name Token has given to their special ceramic bearings because they are different from "standard" ceramic bearings. The ball bearings in Token's TBT bearings are ceramic, so they are very, very round and very hard. They will not deform and suffer an increase in surface area under the weight of a cyclist, which usually leads to more resistance and slows you down. The only problem with ceramic balls is that they are very hard and easily damage standard races made of stainless or regular steel.

Without a specially designed race, you will quickly end up with much more friction than a standard set of sealed bearings. To solve the problem of soft races, Token coats its steel races with titanium nitride. The titanium nitride coating has two functions – it protects the races from corrosion from the balls themselves. Titanium nitride is very hard, so the ceramic balls do not damage the races as easily as untreated races. In addition, the coating protects the steel from corrosion, so TBT bearings can be used all year round without worries.

Compared to standard bearings, TBT bearings are lighter and have less friction, so if you are looking for an advantage, these are the bearings you want.

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