axle pinch bolts

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looseduke

Joined
Jul 17, 2013
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Refitting the front wheel today & snapped an axle pinch bolt. Usual story don't read the instructions until something isn't going to plan:mad:

I doubt im the 1st to do it so what method have people used to get them out? Base model forks but I am not so keen on taking a drill to the leftover bolt in there to use an easy out?
 
"crank on one" seems to be the theme. 19nm (14ftlb). Its a 2 bolt precision clamp. You should alternate the torque sequence between bolts incrementally until you have achieved the correct value on both bolts. Im just not sure at a recommended value of 19nm which is not a lot, how someone snaps the head off one of these.
 
endodoc said:
"crank on one" seems to be the theme. 19nm (14ftlb). Its a 2 bolt precision clamp. You should alternate the torque sequence between bolts incrementally until you have achieved the correct value on both bolts. Im just not sure at a recommended value of 19nm which is not a lot, how someone snaps the head off one of these.
Click to expand...



That's what I'm saying! Hand tight then alternate between the two and both sides. It's like torquing on a wheel.


Sent from my iPhone using Tapatalk
 
have done it 4 times previous and done the 1 each side & back across to the 19nm which is bugger all really so torque wrench is in the bin. 3 out of 4 torqued up easily but the last bolt not so
 
next time don't use this .
 

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1. requires a drill to remove.. ugh dont ask how I know..

Also.. the pattern is 1-2-1 till torqued to 7ft lbs for base model and 15ft lbs for S/R ohlins suspension..
 
If some of the bolt is still sticking out can you cut a slot in it so you can use a screw driver on it. If not easy out time for you. Top tip if it's possible take the head of the snapped bolt and drill a small pilot hole 1.6mm through it on a bench/vice. Then put it back on the snapped bolt and use it as a drill guide. Remove and go up a drill size, repeat this until required size for easy out has been achieved.

I don't know what the metal spec of the bolts are but if they are made out of some sort of granite and nails alloy get some cobalt drills. Use in a high torque drill at a slow rpm 400-1500.
 
i got a mate to make a steel guide with a shoulder to slot into the bolt hole with a 3mm drlll hole running through the middle, bought a 90 deg drill attachment £4.50 of ebay, it was a doddle, make sure you run the drill speed very slow ..replaced with titanium bolts
 
If there is some bolt sticking out buy Knipex water pump pliers with the locking pin adjuster system, I can split a tractor with a pair of them, it will remove it. Also warm it with a blow torch first it will help.
Nothing sticking out, thats a problem as the bolt is small and hard and the the alloy soft and when you drill, preparation is key and drill dead straight, knock in a spiral stud extractor and unscrew..
 
Just snapped mine this morning. Anyone tried a left hand drill bit to remove the old one?
 
Nope, but I have a replacement for you soon ;) see sig.

Sorry about the strip.

Phil
 
Last edited:
Ended up getting it machined out & went up a bolt size, ended up being $4 for 4 new bolts from a bolt shop wasnt paying ducati prices for bolts
 
I stupidly did this last week. I used a small flat head screwdriver and used a hammer tapped the broken nut inside the tread counterclockwise until it came out.

Anyone suggest a place in the U.K. To get replacement bolts?
 
JJ1299 said:
I stupidly did this last week. I used a small flat head screwdriver and used a hammer tapped the broken nut inside the tread counterclockwise until it came out.

Anyone suggest a place in the U.K. To get replacement bolts?
Click to expand...

Recommend Proti for Ti. Expensive but good quality.
 
Added character to my bike today by snapping one of the bolts, the other side the bolts stretched and caused the clamp to distort the area where there is suppose to be space...so no you're not the only one. Misread and thought it was 14ft*lb but it was 7ft*lb....should've trusted my instincts...
 

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