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This is a direct replacement for any BB86 or BB92 Bottom Bracket. The beautifully machined Alloy cups make a great upgrade over the standard plastic OEM units.
Installation requires a Bottom Bracket/Headset Press
Bearings are completely replaceable, so this will be the last bottom bracket assembly you'll ever need to buy!
Frame - Fits into a 41mm Non-Threaded Bottom Bracket Shell. This can be called either Press Fit, BB86 or BB92
Note that the DUB version comes with flanged bearings that press directly into the frame. It does not come with alloy cups like the smaller diameter options do.
Standard Bearings - These run Enduro ABEC 3 Sealed bearings. High precision balls are within 10/1,000,000" round. Races are hardened to R-62 and polished to a mirror finish with ABEC 3 certification for tolerance and noise.
AC Bearings - Angular Contact Bearings - Made by Enduro, these are specifically designed for Hub or BB applications. A standard radial bearing will typically only have 3 or 4 bearings making contact under load. While Angular Contact bearings ensure that all balls are engaged. This spreads the load over a larger surface area and decreases friction and minimises wear. The balls in AC bearings are withing 5/1,000,00" round. This is military specification. They also have Nylon and Graphite ball retainers that are virtually frictionless and the bearings are filled with Rheolube - a special synthetic grease formulated in the USA. LLB Dual lip groove seals on the bearings ensure they remain clean and working at their best. There is also an additional dual lipped seal on both sides on the outside of the bearing (not pictured) for ultimate protection.
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