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Bottom Bracket for Trek Wingra

I have a 2011 Trek Wingra with a 21" frame and the stock Shimano M361 crank.

What bottom bracket do I need and in what size? I haven't been able to find any specs that include info on the bottom bracket.

I'm just assuming that I'll also need some tools to swap this out.
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Answer: 
This crankset (square taper) requires a spindle length of 113mm and the bottom bracket width will depend on the frame bottom bracket shell width (see the image attached).

To remove these cranks you would require a crank puller and a cartridge tool for removing the bottom bracket.

This tool would also be ideal for securing the new bottom bracket within the frame.
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I am biulding a 99 schwinn homegrown and in the stage of buying the crankset and BB from you at CRC.
I am looing at either the xt triple 10spd which would need a bb, or the xtr triple 10spd which miight not.

the shell width is 68 mm
the spindle length is 113mm,

will either setup work?

I would like to put the xtr front deraillieur on it as well, I belive I need a conventional set whick you have as well.
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Answer: 
As your frame has a 68mm Threaded bottom bracket, either of these cranksets will work fine and they come supplied with a bottom bracket.

The Hollowtech II system does not use an integrated spindle within the bottom bracket but instead is attached to the 'driveside' crankarm. So the spacing/chainline will be fine and does not require a specific spindle length.

In terms of the front derailleur, if your frame runs a 'conventional' then you just need to measure the Outer Diameter of the derailleur clamping area on your frame; regardless, these derailleurs come with shims for variable seat tube diameter fitting, just check the parameters on the listing.
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what bottom bracket should i use for my frame if i'll be using a SRAM XO1 Crank?
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Answer: 
You will need a SRAM GXP Press-Fit-41mm to suit your frame & crank combination.
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Shimano doesn't have the bottom bracket for 105 5800 crankset ?
then which brand which model is suitable for this?
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Answer: 
Any Shimano Hollowtech II road bottom bracket will suit. BB6800 (Ultegra) and BB9000 (Dura-Ace) are dimensionally identical, but have better bearings & seals.
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I have a 2007 B-Twin Decathlon carbon framed road bike fitted with a Truvativ Roleur GXP GigaXpipe 170mm crankset.
The bottom bracket has markings: BSA 35-05 with 16 indentations/grooves and the distance between the inner faces of the external cups is approximately 68mm.

How do I determine which bottom brackets could replace the existing one, that would be compatible with the crankset I am currently running

What is the determining factor that would help identify which bottom brackets within your range would be compatible? Is there a measurement I need to make?

Are Shimano, Sram, FSA etc bottom brackets all interchangeable?
Are Shimano, Sram, FSA etc cranksets compatible with the suggested replacement bottom bracket?

If I were considering replacing the Crankset at the same time, what would determine the Cranksets + Bottom Bracket combinations I should be considering (could I swith to Shimano bottom bracket with Shimano crankset etc.)?
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Answer: 
There are two compatibility aspects to consider here, frame type and bottom bracket/crank interface. First, BSA and the 68mm measurement identify your rame as having an English thread bottom bracket - until the advent of press-fit types this was found on about 95% of bikes built. All component manufacturers have models that suit this standard.

Moving to the second aspect.... Your Truvativ/SRAM crank is running on a SRAM GXP bottom bracket. Although broadly similar to Shimano Hollowtech II and FSA Mega-Exo, GXP cranks use a stepped spindle, from 24mm to 22mm at the left end. You can only use another GXP bottom bracket with your existing crank. Shimano and FSA cranks & bottom brackets are theoretically interchangeable due to both using a 24mm straight spindle, but differences in manufacturing tolerances suggest that you're best keeping the crank & bottom bracket from the same manufacturer.
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On my Canyon MTB (AL 6) I would like to upgrade my existing BB71-41.
Any recomendations?
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Answer: 
The ideal upgrade that we can offer is listed below and for use with a Shimano crankset (24mm Spindle) the 24mm option would be required.
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FSA 8200 megaexo

hi, really struggling to find this replacement, i think i have ordered twice now & got it wrong.

please can you advise if you have ceramic or steel bearings full or cartridge to renew FSA 8200 megaexo, struggling & need to replace ASAP
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Answer: 
The FSA BB8200 BB you have ordered is for BB386 Evo Cranksets which have 30mm spindles. You need the older version of the BB8200 which was designed for standard 24mm Mega Exo cranksets.

We no longer stock the BB you are looking for and we don't have a bearing kit. You could however go for the FSA BB8681 which was designed to be used with the SLk-K Light chainset but it will work fine with the K-Force Light.
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Truvaliv GPX XR

i have a specilazed epic (2006) with a TRUVALIV GPX XR bottom bracket, can you advise me of a better than good replacement please
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Answer: 
The SRAM GXP bottom bracket listed below will be an ideal replacement.
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