What size are BB90 bearings?
37mm
Uses two sealed bearings (37mm OD) which are pressed into the frame and stop against a raised step built into the frame’s bottom bracket shell.
What is the difference between BB30 and BB90?
While the “30” in BB30/PF30 references the inside diameter of the used, the numbers in BB86/92 and BB90/95 refer to the width of the frame’s bottom bracket shell.
What does BB90 stand for?
bottom bracket shell
BB90 and BB95 This unique bottom bracket shell is not a straight bore but has an internal bearing retainer built into the shell, similar to an integrated headset. Bearing outside diameters are 37mm. Trek® BB90 bottom bracket shell. BB90 shell and bearing with spindle and bearing removed.
What size is BB90?
The BB90/95 standard is used by Trek on many frames. Two sealed bearings (37mm OD) are pressed directly in to the frame’s bottom bracket shell.
When did Trek start using BB90?
2007
Trek heaped huge piles of praise on its the then-revolutionary BB90 system it launched in 2007.
How long do bottom bracket bearings last?
Simple rule is (unless you’re starting a long trip) “if it ain’t broke don’t fix it”. Do normal maintenance, keep things properly lubed and your BB should last for another 4,000 miles or more.
When did trek start using BB90?
Is BB90 press fit?
Park Tool describes BB90 bearings as “a mild press fit” — they typically don’t require as much force to insert as a conventional press-fit and, in some frames, the bearings will actually slip in by hand.
What kind of bearings does a trek BB90 / 95 use?
Trek BB90/95. The BB90/95 standard is used by Trek on many frames. Two sealed bearings (37mm OD) are pressed directly in to the frame’s bottom bracket shell. A step is molded in to the frame for the bearings to seat against. Trek BB90/95 frames do not use bearing retainer clips.
What kind of bearings do trek road bikes use?
Info Installation Instructions Video Specifications JUST THE FACTS: BB90 is the road bike version of Trek’s proprietary Direct-in-frame bottom bracket system. No cups or extra hardware required. The Trek BB90 bearings press directly into the frame. These Shimano bearings work with all Shimano HollowTech crank systems.
What kind of bearings do Shimano cranks use?
The Trek BB90 bearings press directly into the frame. These Shimano bearings work with all Shimano HollowTech crank systems. Our zero-drag bearing shieldsare included with your purchase. How do I know if my bike needs a Repair Kit or a Standard Kit?
What’s the difference between a BB90 repair kit and the BB90 standard kit?
What’s the difference between a BB90 Repair Kit and the BB90 Standard Kit? Short Answer: The Standard Kit uses VibraTite530while the Repair Kit uses VibraTite538.