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PostPosted: Mon Aug 19, 2013 1:52 pm 
Old School Hero

Joined: Fri May 31, 2013 1:34 pm
Posts: 162
Hi.

I'm wondering if there is anything I need to be aware of if I was to put a modern Hollowtech chainset on to my 97 Zaskar frame?

I know BITD you need to make sure you got the correct size BB, but i honestly dont know how this works these days.

any advice would be great. Thanks


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PostPosted: Mon Aug 19, 2013 2:48 pm 
Retro Guru
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Joined: Sun Mar 14, 2010 2:33 am
Posts: 2923
Location: daaan saaaf
You can fit modern a chainsets with a hollow spindle, like Shimano Hollowtech, or RaceFace X-Type that use screw-in bearing cups, like this: http://www.chainreactioncycles.com/shim ... -prod34674

But not the press fit bearing types, like BB30, BB92 etc.


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PostPosted: Mon Aug 19, 2013 2:58 pm 
Old School Hero

Joined: Fri May 31, 2013 1:34 pm
Posts: 162
xerxes wrote:
You can fit modern a chainsets with a hollow spindle, like Shimano Hollowtech, or RaceFace X-Type that use screw-in bearing cups, like this: http://www.chainreactioncycles.com/shim ... -prod34674

But not the press fit bearing types, like BB30, BB92 etc.



Thanks.

But how do i ensure the chain line is correct? do you need spacers or similar?


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PostPosted: Mon Aug 19, 2013 3:14 pm 
Retro Guru
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Joined: Sun Sep 23, 2012 5:36 pm
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Location: Gloucestershire
I ran a hollowtech type Raceface Evolve XC(currently for sale) on my Zaskar and it worked fine. I cant remember what spacers went where now, possibly one drive side and 2 non drive side. But there was enough in the BB kit to line it all up. Was just trial and error, just need to set it to 73mm and away you go.

I only changed it as I wanted to go a bit more old school.

Hope that helps


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PostPosted: Mon Aug 19, 2013 3:20 pm 
National & North West AEC
National & North West AEC
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Joined: Mon Nov 03, 2008 12:43 am
Posts: 8146
Location: Macclesfield Forest
A 97 Zaskar will have a 73mm BB shell, so just fit one of the three supplied plastic spacers on the driveside external BB cup.


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PostPosted: Mon Aug 19, 2013 4:33 pm 
Old School Hero

Joined: Fri May 31, 2013 1:34 pm
Posts: 162
Brilliant!

Thanks for the help.

Still undecided on this as i'll still be running V-brakes, no planes to move to discs.

Just weighing up the options.


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PostPosted: Mon Aug 19, 2013 4:36 pm 
Old School Hero

Joined: Fri May 31, 2013 1:34 pm
Posts: 162
Just found this document from Shimano.

It mentions about facing the BB shell. Has anyone ever had to do this?


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PostPosted: Mon Aug 19, 2013 4:40 pm 
Retro Guru
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Joined: Sun Sep 23, 2012 5:36 pm
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Location: Gloucestershire
I wouldn't worry about that dude. As long as the thread is clean and not knackered you will be fine.


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PostPosted: Mon Aug 19, 2013 4:42 pm 
Old School Hero

Joined: Fri May 31, 2013 1:34 pm
Posts: 162
tonedeaf101 wrote:
I wouldn't worry about that dude. As long as the thread is clean and not knackered you will be fine.


Cool. Thanks

I know the Sealed Cartridge BB fits in cleanly and seems to sit flush against the edges of the shell.


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PostPosted: Mon Aug 19, 2013 4:44 pm 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider
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Joined: Sun Apr 02, 2006 1:03 pm
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Location: Returning
^ yup what he says

Remember the bb spindle length is specific to the chainset ,not the frame
Get some pics up
We like pics we do


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