Daft question - cha...
 

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[Closed] Daft question - changing from square taper to HT2 BB

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I bought a cheap used road bike that has a square taper bb fitted (and cheap cranks). I'd like to upgrade the cranks to save a bit of weight and this would probably involve changing to a HT2 bb. It is simply a matter of removing the square taper bb and fitting the BB or could there be fitment issues?


 
Posted : 31/05/2011 9:53 am
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It's that simple.

There may well be cheaper ways of saving weight though, and HT2 is nowhere near as durable as ST.


 
Posted : 31/05/2011 9:54 am
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Yeah, run the square taper until it wears out then change to an HT4 BB.


 
Posted : 31/05/2011 9:55 am
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HT4????


 
Posted : 31/05/2011 9:56 am
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Yep - by the time the ST one wears out Shimano will have retired HT2 & 3 😉


 
Posted : 31/05/2011 9:58 am
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There may well be cheaper ways of saving weight though

This is a good point. The road bike thing is pretty new to me (but interesting) and I suspect the wheels I've got may well be better candidates for weight saving.


 
Posted : 31/05/2011 10:03 am
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- You will need to get the BB shell "faced" to remove the paint - and allow the bearing cups to sit straight/flush


 
Posted : 31/05/2011 10:06 am
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Worth looking at the whole picture - wheels may well be heavy but new ones may be £££, if transmission is worn then may justify new chainset.

TBH making a bike light by piecemeal replacement of parts is just about the most expnsive way of getting a light bike.


 
Posted : 31/05/2011 10:06 am
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You will need to get the BB shell "faced" to remove the paint - and allow the bearing cups to sit straight/flush

If you like to do everything your supposed/told to do then you will. Otherwise dont bother.

Get some planet x model b wheels and some light tires, this would maybe be the best/cheapest way of saving weight


 
Posted : 31/05/2011 10:10 am
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Get some planet x model b wheels

That's much much more like it. I'd save 300g on the front wheel alone, so probably an overall saving of 6-700g on a pair of wheels 😯 ..... sold 🙂


 
Posted : 31/05/2011 10:40 am

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