Bottom bracket 650b Boardman 2017 mtb
- Thread starter Drako
- Start date
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Ajax Bay
Guru
- Location
- East Devon
Like this one? https://cyclingshop.org.uk/boardman-comp-2017-mountain-bike-27-5-650b/
SRAM X5 chainset? Like this one?
View: https://www.amazon.co.uk/SRAM-X5-10-Speed-Crankset/dp/B01GOJLK5E
If so, a BB30 BB. Your brief request suggests that your local bike shop may be a sensible port of call.
SRAM X5 chainset? Like this one?
View: https://www.amazon.co.uk/SRAM-X5-10-Speed-Crankset/dp/B01GOJLK5E
If so, a BB30 BB. Your brief request suggests that your local bike shop may be a sensible port of call.
Hi
Hi and thank you for replying.
Just attached some pictures of my mike & some characteristics.
Can you just confirm if that's the right bracket & where can I order it from, as my local shop can't provided it atm 😔
Attachments
Ajax Bay
Guru
- Location
- East Devon
Your chainset looks to be a SR Suntour XCM. And the listing shows it's a square taper BB (not a BB30 which the X5 would need).
Maybe this is like yours: https://www.tredz.co.uk/.SR-Suntour-CW-XCM-D-22-36T-MTB-Chainset_89726.htm
The best square taper BB is a UN-55. Will be 'English Thread'. You need to get the dimensions right and the two critical ones are the width of the BB shell - would guess at 73mm - normal for MTBs, and the spindle length (more difficult but maybe 113mm - that sort of figure anyway). If you're fitting this yourself, you can take off the cranks and measure both dimensions.
For assurance you must measure these - I would not buy till I had.
The 73/113 seems out of stock in some places but here's one: https://winstanleysbikes.co.uk/shimano-bb-un55-bottom-bracket
Maybe this is like yours: https://www.tredz.co.uk/.SR-Suntour-CW-XCM-D-22-36T-MTB-Chainset_89726.htm
The best square taper BB is a UN-55. Will be 'English Thread'. You need to get the dimensions right and the two critical ones are the width of the BB shell - would guess at 73mm - normal for MTBs, and the spindle length (more difficult but maybe 113mm - that sort of figure anyway). If you're fitting this yourself, you can take off the cranks and measure both dimensions.
For assurance you must measure these - I would not buy till I had.
The 73/113 seems out of stock in some places but here's one: https://winstanleysbikes.co.uk/shimano-bb-un55-bottom-bracket
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
Thats not square taper, it's got a hollow axel.
Pic of the non drive side please. Being Suntour, it might use Shimano Hollowtech, but could be GXP.
Pic of the non drive side please. Being Suntour, it might use Shimano Hollowtech, but could be GXP.
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
The good news, just get a Deore BB. No measuring to do, and they are quite reliable.
Ajax Bay
Guru
- Location
- East Devon
Well done. I was paying attention to the fourth image (listing specs) where it had "square taper" without checking back to the first image.
The OP's is maybe an XCM AX not an XCM CW.
rogerzilla
Legendary Member
Can you use Google? A Deore BB was suggested above.
However...you will need a special tool to fit it, as well as some grease, allen keys and probably a mallet. It may come with instructions but, if not, you will need to look them up. It is possible to ruin parts or have the LH crank fall off if you don't do it properly.
However...you will need a special tool to fit it, as well as some grease, allen keys and probably a mallet. It may come with instructions but, if not, you will need to look them up. It is possible to ruin parts or have the LH crank fall off if you don't do it properly.
Ajax Bay
Guru
- Location
- East Devon
https://www.merlincycles.com/shimano-bb52-deore-hollowtech2-bottom-bracket-51282.html
This is not a recommendation - and you could have done this easily, Jason.
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
Assuming the new poster has the same chainset. Suntour XCM AX.
Google fu is lacking in this padawan.
Boardman did swap and change specs on some bikes due to stock.. My FS Pro came with upgraded SRAM Guide RS brakes rather than the Avid stuff - snapped it up.
Google fu is lacking in this padawan.
Boardman did swap and change specs on some bikes due to stock.. My FS Pro came with upgraded SRAM Guide RS brakes rather than the Avid stuff - snapped it up.
Google is wack !!! And I also did search the debore bb wasn't no help at all ..
I do have the suntour chain set and I have ordered to bb and they have both gone back due to the size and fitment .
I did order a Meroca Bottom bracket which does fit 68/73mm threads but this was wrong ..
I do have the suntour chain set and I have ordered to bb and they have both gone back due to the size and fitment .
I did order a Meroca Bottom bracket which does fit 68/73mm threads but this was wrong ..
Also like the one I brought the second time and didn't fit ..
