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Giant TCR Advanced SL Build BB Question
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I’m having a hard time understanding what BB I can run in this frame. So it currently has a SM-72-41. I want to put a Sram Red crank in so my options are GXP or BB30. Obviously these won’t fit with this BB. So I’m looking to buy and have a buddy install a new bottom bracket. What are my options? I look online and I’m afraid to buy something because I’m not sure it will fit.

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Re: Giant TCR Advanced SL Build BB Question [PayneM85] [ In reply to ]
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A pressfit GXP BB should work with the sram cranks

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Re: Giant TCR Advanced SL Build BB Question [PayneM85] [ In reply to ]
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By looking at the dimensions of your Shimano BB (41x86.5mm) it appears to be a BB86/92 specimen. In that case this should work for you:

https://wheelsmfg.com/...am-cranks-black.html

(or one of it's cousins in other colours or with different types of bearings)

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Re: Giant TCR Advanced SL Build BB Question [Richard Blaine] [ In reply to ]
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Richard is correct. I have a 2017 TCR and this is what I run on my bike with SRAM cranks - make sure you get the GPX version of the cranks for this BB.
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Re: Giant TCR Advanced SL Build BB Question [PayneM85] [ In reply to ]
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Most giant carbon road frames are BB86, so a gxp bb and crank required, if you were going for a quarq carbon power meter you could use gxp or bb30 version as the axles are longer
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Re: Giant TCR Advanced SL Build BB Question [neilridley] [ In reply to ]
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Thanks for the help! I went with the Wheels bb from the recommendations.

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Re: Giant TCR Advanced SL Build BB Question [PayneM85] [ In reply to ]
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I recently built up a 2019 TCR Advanced SL Disc. I run 30mm spindle PM cranks on all my bikes, so I used the Rotor Press Fit 4130 Bottom Bracket.

Even with this bottom bracket, not all 30mm spindle cranks will work on the frame, as it has a very wide bottom bracket shell. The S-Works Power Cranks had no chance, as the spindle is quite narrow. SISL2 cranks also wouldn't work, even trying spindles of varying widths.

Finally I settled on Rotor 3D+. Those worked with very minimal spacers.

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