Fitting an FSA Omega MegaExo crankset

[Cyclist33]

I've got one.

It doesn't come with the tool for fitting the BB into the frame.

Has anyone got one who lives nearby?

Thanks

Stu

 

[Hacienda71]

I have a splined bb tool Stu which does Shimano and Sram, I suspect it will do an FSA Omega BB. Can you check how many splines/tooth holes are on the BB.

 

[dan_bo]

I've got one for a borrow. Park/shimano job. much like hac, but mines better.

 

[Hacienda71]

I've got one for a borrow. Park/shimano job. much like hac, but mines better.

 

[Cyclist33]

cheers fellas... with a bit of luck, LBS Mike will still be in when I finish work and has offered to do it for nowt.

may come back to yous if ithat doesn't work out.

Stu

 

[gbb]

Shimano HT2 tool does fit, but mine was tight, bloody tight, I had to virtually hammer it onto the old BB. Shame is ( if mines typical) is marking your old bb is no problem, I wouldn't like to scrape the paint off a new one. But...needs must.

Forgive me if I'm stating the obvious ... Don't over tighten the preload bolt, it'll ruin the new bearings pronto.

 

[Cyclist33]

preload bolt?

 

[gbb]

As you assemble the crankset you then fit and 'tighten' the preload bolt ONLY to remove any sideways movement of the crank assembly on the bike. Having tightened the preload bolt JUST enough (and its not tight when its just right..if that makes sense)...clamp the non driveside crank onto the axle with the two opposing allen bolts. Do not overtighten the preload bolt because it puts too much strain on the bearings, shortening their life (quite drastically in some cases).
Its all in the instructions IIRC.

 

[Cyclist33]

yes but i dont know what you mean by preload bolt and no part is thus described in the booklet so which part do you mean?

 

[gbb]

Sorry cyclist, on the non drive side crank, a large flanged bolt (14mm threadIIRC) screws into the end of the crank. This is the preload bolt. It's not to tighten the cranks, only to 'preload' them, ie to take out any sideways movement.