HenryS Posted September 23, 2015 Posted September 23, 2015 I bought a hardly used Silverback Spectra 29 Comp at a very good price. It comes with a 3x9 drive train that uses this BB: http://www.chainreactioncycles.com/za/en/shimano-un26-square-taper-bottom-bracket/rp-prod34652. I would like to change the whole drive train to use the 3x10 setup from my 2012 Scott Aspect 10. This uses the Hollowtech II BB. My question is will the Hollowtech BB fit in the Silverback? I don't want to disassemble everything and then find it doesn't fit for some or other reason.
fanievb Posted September 23, 2015 Posted September 23, 2015 you need something like this for hollow tech http://www.cwcycles.co.za/product/shimano-bb-spline-hollowjust confirm your shell width http://fcdn.mtbr.com/attachments/specialized/437950d1236404909-older-specialized-hardrock-bottom-bracket-2468190596_166dc66ca2.jpg
EVOBIKES ONLINE STORE Posted September 23, 2015 Posted September 23, 2015 I bought a hardly used Silverback Spectra 29 Comp at a very good price. It comes with a 3x9 drive train that uses this BB: http://www.chainreactioncycles.com/za/en/shimano-un26-square-taper-bottom-bracket/rp-prod34652. I would like to change the whole drive train to use the 3x10 setup from my 2012 Scott Aspect 10. This uses the Hollowtech II BB. My question is will the Hollowtech BB fit in the Silverback? I don't want to disassemble everything and then find it doesn't fit for some or other reason. Normal Hollowtech will fit. http://www.evobikes.co.za/components/bottom-brackets/shimano-hollowtech-bb.html
HenryS Posted September 23, 2015 Author Posted September 23, 2015 you need something like this for hollow tech http://www.cwcycles.co.za/product/shimano-bb-spline-hollow just confirm your shell width http://fcdn.mtbr.com/attachments/specialized/437950d1236404909-older-specialized-hardrock-bottom-bracket-2468190596_166dc66ca2.jpg if there is a difference, would that just entail getting a different Hollowtech BB? ie. will the cranks still fit?
EVOBIKES ONLINE STORE Posted September 23, 2015 Posted September 23, 2015 if there is a difference, would that just entail getting a different Hollowtech BB? ie. will the cranks still fit? Normal Hollowtech will work fine as your existing BB is for 68 -73mm. The spacers you get with the Hollowtech BB will allow you to use it in your existing shell... Be it 68mm or 73mm.
HenryS Posted September 23, 2015 Author Posted September 23, 2015 Normal Hollowtech will fit. http://www.evobikes.co.za/components/bottom-brackets/shimano-hollowtech-bb.html Ah, just the person I wanted to ask. Is this the correct tool to remove the square taper BB from the Silverback: http://www.evobikes.co.za/components/tools/ice-toolz-shimano-isis-bottom-bracket-tool.html
EVOBIKES ONLINE STORE Posted September 23, 2015 Posted September 23, 2015 Ah, just the person I wanted to ask. Is this the correct tool to remove the square taper BB from the Silverback: http://www.evobikes.co.za/components/tools/ice-toolz-shimano-isis-bottom-bracket-tool.html Jip! That is.
HenryS Posted September 23, 2015 Author Posted September 23, 2015 Thank you everyone for your advice. After a quick trip to Evo Bikes and meeting Naas, I now have everything I need to swap the drive trains around.
droo Posted September 23, 2015 Posted September 23, 2015 I'd also recommend getting the BB shell faced before you install - it'll make your bearings last longer. Just make sure your LBS has the tool before you head through though.
HenryS Posted September 23, 2015 Author Posted September 23, 2015 I'd also recommend getting the BB shell faced before you install - it'll make your bearings last longer. Just make sure your LBS has the tool before you head through though. What is faced and would it be necessary on a bike that probably hasn't done more than 50km from new?
droo Posted September 23, 2015 Posted September 23, 2015 What is faced and would it be necessary on a bike that probably hasn't done more than 50km from new? It's a process that makes sure the ends of the shell are square and aligned, and it's necessary of the bike has never had an external BB fitted to it.
HenryS Posted September 23, 2015 Author Posted September 23, 2015 It's a process that makes sure the ends of the shell are square and aligned, and it's necessary of the bike has never had an external BB fitted to it. Ohhh, and so we learn some more. Great. more money that I need to spend.
droo Posted September 23, 2015 Posted September 23, 2015 Ohhh, and so we learn some more. Great. more money that I need to spend. Should be about R 100, so nothing ridiculous...
HenryS Posted September 23, 2015 Author Posted September 23, 2015 Should be about R 100, so nothing ridiculous... Not too bad then. Pity you're so out of the way for me.
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