This makes sense because PF30 was also a SRAM invention.
But in an interesting twist, the next evolution of the 30mm bottom bracket is SRAM’s DUB, which is designed to work with familiar, 90mm-ish-wide outboard bearing setups, but there is also a plastic shim inside the bearings to further help accommodate for frame imperfections. PF30 frames suffered a lot of lateral load on the bearings because of the wider cranks. You can join our Facebook group Wyze Labs Beta Testers or check out the Wyze Beta. Mountain bike frames are not narrow, so neither are the cranks. Please log in to your Google account, go to this page and click on the. But the BB30 shell was a standard designed for the road world, where the narrow bearing stance actually complimented the narrow frames. BB30 introduced the 30mm crank spindle, which has made it possible for e*thirteen, Cane Creek and (sometimes) Race Face to make some pretty neat cranks. And it succeeded, but it didn’t solve the whole problem. The second evolution beyond the problematic BB30 bottom bracket standard, the also problematic PF30 bottom bracket added plastic cups around the bearings to account for imperfections in frame manufacturing. The shock worked completely normally otherwise, but Autosag added confusion to something mountain bikers kinda need to understand without the help of gadgetry.Īlso in the frame was a pres-fit 30, or “PF30” bottom bracket. “Autosag” was a second valve that, after pumping your shock up to a whopping 300 PSI, you would release while in the riding position to automatically reach the bike’s optimal sag point. Reach your audiences and discover the best of Twitter. And on that frame in the 2013 version was an attempt by Specialized to make suspension setup easier. The most powerful Twitter tool for real-time tracking, organizing, and engagement.
No, it slotted right in between the two, with its own frame and everything. It also wasn’t just a long-travel Epic, Specialized’s XC race model. The 120mm Camber was not simply a short-travel Stumpjumper, though it technically would become one when it got folded into that model as the Stumpjumper ST in 2019. The Specialized Camber was an early version of what we might today call an “aggressive short-travel trail bike,” and others might call “downcountry.” But we don’t use that term. This is a blast from the very recent past, but it’s still packed with relics. Get access to everything we publish when you