What bottom bracket size /model do I need?
06-14-19, 04:21 PM
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What bottom bracket size /model do I need?
Hello people, so I'm working on a bike build and got a frame recently second hand but when I measure in the inside tube, it doesn't add up, so bit confused.
Frame is Giant defy advanced 1(2014) Medium. From online specs it says Shimano press fit, but no sizing. I'm also using Shimano 105 cranks, if that helps.
Appreciate the help!
Frame is Giant defy advanced 1(2014) Medium. From online specs it says Shimano press fit, but no sizing. I'm also using Shimano 105 cranks, if that helps.
Appreciate the help!
06-14-19, 05:11 PM
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Shimano 105 cranks covers about 20 years and numerous generations and BB types. You'll need to be a bit more specific.
Everything from this.
https://velobase.com/ViewComponent.as...34a99&Enum=115
To this
https://bike.shimano.com/en-EU/compo.../crankset.html
https://bike.shimano.com/en-EU/produ...M-BB72-41.html
Everything from this.
https://velobase.com/ViewComponent.as...34a99&Enum=115
To this
https://bike.shimano.com/en-EU/compo.../crankset.html
https://bike.shimano.com/en-EU/produ...M-BB72-41.html
06-15-19, 05:24 AM
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https://si.shimano.com/pdfs/dm/DM-FC0003-06-ENG.pdf
https://productinfo.shimano.com/#/co...453&acid=C-455
https://productinfo.shimano.com/#/co...453&acid=C-455
Last edited by dedhed; 06-15-19 at 05:27 AM.
06-15-19, 06:58 AM
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Moving to Mechanics Forum
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Keep the chain tight!
06-15-19, 07:47 AM
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The FC-5800 is a Hollowtech II design with the spindle built into the driveside crank arm so the spindle length is fixed. The matching bottom bracket has external cups and you need the press-fit version which is SM-BB72-41.
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