8 replies to this topic

[rapid roy]

IM CURRENTLY IN THE MIDDLE OF FETTLING THE BIKE FOR THE INCOMING SEASON
06 BLACK FRAME MODEL
REMOVING THE FRONT BRAKE CALIBRE THE HEADS OF THE BOLTS SHEARED (REPLACED WITH MONTESA ONES)
I CANT BELIEVE THE SHEAR LACK OF GREASE ON MOVING PARTS
THE CHAIN TENSIONER ARM IS VERY WEAK

IS THERE ANYTHING ELSE I SHOULD BE CHECKING TO INSURE TROUBLE FREE TRAILING

CHEERS

Edited by rapid roy, 04 August 2006 - 12:35 PM.

[Cota Kid]

Similar problem on my Sherco and more recently my 4RT. Replaced them with 315 hex headed bolts.

[copemech]

I will only say that if you spend an ounce of prevention it is worth a pound of cure!

Coat the threads of all your common bolts with a mix of anti-sieze and good grease and you will never have a problem!

Even the 4RT will corrode like a pig if you do not protect it from the mud and water entry! Those Jap bolts are the worst when it happens!

[GII]

Crap fastenings (Japanese, Spanish or Italian) are the bane of our lives.

Good quality bolts are still very cheap and are available in a variety of materials and coatings.

I buy M5 and M6 socket heads (Allen) and button heads 50 at a time 25mm long in A2 stainless, they don't cost so much and you can easily cut them down.

BUT

Dont Ever use Stainless bolts to mount calipers or discs.

Buy HT Steel, yellow passivated or galvanised if you can find them, and coat them with copperslip or waxoyl

[titanium]

Why not go with titanium?

[barrybaines]

titanium, on Sep 12 2006, 07:48 PM, said:

Why not go with titanium?

Because they are bloody expensive.... Unless of course you can let us into a secret of cheap ones somewere?

[neonsurge]

GII, on Aug 20 2006, 12:05 AM, said:

BUT

Dont Ever use Stainless bolts to mount calipers or discs.

Why? I replaced the caliper bolts on my old Beta with cap head stainless ones and never had a problem. Not being snarky, I'd like to know for future reference...

[dale]

Hi, i was told that stainless bolt have less tensile strength than mild steel and are more prone to shear

[barrybaines]

2747 dale, on Sep 14 2006, 11:09 PM, said:

Hi, i was told that stainless bolt have less tensile strength than mild steel and are more prone to shear

Correct if using Stainless in high stress areas you MAY have problems but I beleive differnt grades are available for such instances, this is where Ti is worth considering as the higher grade stainless may be about the same cost or not much in it and Ti is obviously lighter and a bit more bling