Will these cranks fit?

[Alex11]

I'm building a Singlespeed, and I've got a square taper bottom bracket.

I want to buy this : http://www.ebay.co.uk/itm/261200343640?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648


Will it fit okay?

 

[Cycleops]

In a word 'Yes' but it's a pretty cheap and nasty affair. It is cast steel and will weigh a ton. I you wamt a quality alloy one it will be more like £40 plus. Remember nobody ever regreted buying quality, but it's up to you.

 

[Alex11]

In a word 'Yes' but it's a pretty cheap and nasty affair. It is cast steel and will weigh a ton. I you wamt a quality alloy one it will be more like £40 plus. Remember nobody ever regreted buying quality, but it's up to you.

Thanks for the reply!

 

[smokeysmoo]

+1 for Cycleops comments, I wouldn't such a cheap part myself, buy cheap buy twice as the old saying goes.

THIS is a decent chainset IMO. I bought one last year and was very happy with it.

 

[RecordAceFromNew]

I'm building a Singlespeed, and I've got a square taper bottom bracket.

I want to buy this : http://www.ebay.co.uk/itm/261200343640?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648

Will it fit okay?

The simple answer, whether it is with the ebay or Planet-X one, is unlikely.

There are no less than 20 different square tapered spindle lengths and system (traditional/JIS/ISO) combinations. The chance of your square tapered BB happens to provide the correct chainline, which is especially desirable for a single speed or fixie, is less likely than getting shot playing russian roulette! Also the chainset can clash with the frame. See this if you don't know what chainline is. If you do want to use your existing BB you must first find out what it is.

 

[Alex11]

If I were to take photos and measurements of my bottom bracket, would that help?

 

[RecordAceFromNew]

Possibly. Labels/markings on the BB could help.

I should also add that because chainsets are usually quite a bit more expensive than BBs, and because there are few extensive chainset databases incorporating BB spindle requirement, picking a chainset based on an existing BB specification can be like a tail wagging a dog, not always, but likely.

 

[Cycleops]

It might be an idea to take the BB apart to service it, it will almost certainly need regreasing. When you look at the spindle it will have the length and width ifo inscribed on it. 'E' is spindle length, the 68 means it will fit a 68mm BB. Taper of the end may vary between 3 to 3 1/2 degrees so it may be worth getting the correct BB for your chosen chainset. You should be able to get one for about a tenner.