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PostPosted: Fri Jul 14, 2017 1:25 pm 
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Joined: Wed Mar 08, 2017 11:41 pm
Posts: 71
Hi All,
I have a 2016 Scott Addict with what I assume is a BB 86.
I currently have an Ultegra crankset but if I was to switch to another company such as Sram would I need GXP or BB30 cranks.
Also would I need a different bottom bracket.
Any measurements and information would be awesome
Thanks :)


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Posted: Fri Jul 14, 2017 1:25 pm 


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PostPosted: Fri Jul 14, 2017 1:42 pm 
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Joined: Tue Jun 16, 2015 10:22 am
Posts: 78
For the Scott's, you will need the SRAM PF GXP 86.

http://www.chainreactioncycles.com/sram ... d|291564UK


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PostPosted: Fri Jul 14, 2017 11:36 pm 
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p3dalfaster wrote:
For the Scott's, you will need the SRAM PF GXP 86.

http://www.chainreactioncycles.com/sram ... d|291564UK


Thankyou, so does that mean I need the Sram GXP cranks?


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PostPosted: Fri Jul 14, 2017 11:47 pm 
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Joined: Fri Dec 11, 2009 10:38 pm
Posts: 1848
Location: Welland, Ontario
JScycle wrote:
p3dalfaster wrote:
For the Scott's, you will need the SRAM PF GXP 86.

http://www.chainreactioncycles.com/sram ... d|291564UK


Thankyou, so does that mean I need the Sram GXP cranks?


Without going into a long explanation - yes, if you wish to use a SRAM crankset. And a GXP BB to go with the frame.

_________________
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM


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PostPosted: Fri Jul 14, 2017 11:52 pm 
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Joined: Wed Mar 08, 2017 11:41 pm
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bikerjulio wrote:
JScycle wrote:
p3dalfaster wrote:
For the Scott's, you will need the SRAM PF GXP 86.

http://www.chainreactioncycles.com/sram ... d|291564UK


Thankyou, so does that mean I need the Sram GXP cranks?


Without going into a long explanation - yes, if you wish to use a SRAM crankset. And a GXP BB to go with the frame.


Thankyou, so what is the difference in shimano spindles and sram gxp spindles?


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PostPosted: Sat Jul 15, 2017 5:46 am 
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Posts: 334
Shimano is 24 mm.

Gxp is 24 mm on one end and 22 on the other (it's tapered).

_________________
Most "innovations" in cycling are solutions for non-existing problems.


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PostPosted: Sat Jul 15, 2017 12:53 pm 
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Joined: Fri Dec 11, 2009 10:38 pm
Posts: 1848
Location: Welland, Ontario
Well actually it's stepped, not tapered.

The NDS bearing has a nominal 22 mm bore and the step on the spindle butts up to it. When the spindle bolt it tightened a lip on the crank contacts the inner race, clamping onto the bearing, thereby holding the spindle laterally.

_________________
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM


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PostPosted: Sat Jul 15, 2017 1:11 pm 
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Joined: Wed Mar 08, 2017 11:41 pm
Posts: 71
bikerjulio wrote:
Well actually it's stepped, not tapered.

The NDS bearing has a nominal 22 mm bore and the step on the spindle butts up to it. When the spindle bolt it tightened a lip on the crank contacts the inner race, clamping onto the bearing, thereby holding the spindle laterally.



Thanks so much!


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Posted: Sat Jul 15, 2017 1:11 pm 


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