4 replies to this topic

[kevhenson]

my lads 05 125 has "lost" 3 of the bolts out the rear sprocket and 4th one was loose which has elongated the holes that hold the sprocket to the hub, does anyone know of a fix or how much am i lokking at for a new wheel?
cheers

[dabomb]

The best way is to use helicoils.You drill the hole out to a given size,tap the hole,then screw a special wire insert into it,which contains the original thread size.Its a simple job if you are handy.Go to an engineers merchants,explain to them what you have done,they should be able to help.Not sure how much a kit would cost,but it wouldnt be that expensive.
Failing that,you could drill the holes out in the hub and tap them the next size up,but every time you put a new sprocket on you would have to drill the holes out(in the sprocket)to fit the larger bolts.

[kevhenson]

on the gasgas the hub isnt threaded its a nut and bolt job, unfortunatly its elongated what was m8 to nearly a 12mm slot... i did think about drilling out until i seen how much by

[G14GAV]

Weld the hole up and re drill it! bout 5 min with a tig!

[kevhenson]

G14GAV, on Feb 11 2008, 06:28 PM, said:

Weld the hole up and re drill it! bout 5 min with a tig!

now i like that idea just need someone near me now who can weld

thanks

tried the local metalworkers and they wont weld it cos the wall section is to thin for the depth of weld... worth a try tho

Edited by kevhenson, 12 February 2008 - 08:14 PM.