Yes, I know I'm being lazy here, but does anyone know the specific size/type of allen head bolt for the front fork ends, which retain/clamp the wheel axle? I've just been into my local tyre dealer who, through no fault of theirs, managed to round off the internal allen head, whilst getting the damn thing out to fit the new tyre, as it had slightly corroded on the small area of bolt shaft face exposed, locking it in place. Usual Ducati cheese....... I'm going to opt for stainless steel this time and will be looking for a replacement set of four, so any suggestions as to a reliable, fast supplier would be helpful, as my local Ducati dealership have none in stock
Can you check in the parts diagrams? I guess it might not give the size. Probolt used to have a good pdf with all the sizes on their website
This was the page I mean't with the guide (couldn't find it on my phone last night), quite useful to print off. https://www.pro-bolt.com/bolt-measuring-guide/
I've checked out what PB have in their stock and although I can get pretty close to what I've currently got on the bike, the cap is slightly tapered, instead of straight, with a slightly longer thread length (circa 5mm). They are titanium and very expensive, but they will clearly outlast the Ducati cheese stuff, but would the couple of minor differences have any effect on suitability for the fork fixing?
It'd be useful if you could pop in a picture of your existing screw/bolt next to a rule so we can see what the relevant measurements are. Bolts are made in standard lengths (thread, shank, etc lengths) and your fork bolts are unlikely to be specials, so should be matched easily to a catalogue part...
KP, I've now checked all of the dimensions of the Ducati standard versus the PB replacement and they pretty much match in every respect, i.e. thread length, shank length, shank diameter, overall length, head height, grip length, head diameter, etc. As such I'm reasonably sure they will work, it was just the fact that the replacements have a tapered as opposed to a parallel head, which was my primary concern.
I think you will find all the PB cap head bolt heads are tapered. Whether that is by design, prevent galling if the head is sub flush, or just for aesthetics. Andy
I agree the taper is more for aesthetics I guess The bolts are only to clamp the axle on the spindle and not subject to much load, hence the low torque value. So I don’t see a problem with the PB alternative
Thanks for that, I'm going to go for the PB alternative and replace all four. I've just tried to remove the bolts fitted by the tyre dealership yesterday, knowing that one was fitted with the rounded head/cap, at a lower torque than was required, the others all torqued up appropriately (!). Now as 'Ducati's Law' would have it, one of the others has succumbed to the cheese factory dilemma and is stuck solidly where it fits and I can't shift the f*****g thing....no matter what I attempt to use!
Get your heat gun out? Allen key (or Allen socket) with a long bit of pipe fitted over the end, just make sure it doesn't slip out, you know what they say about the lever...
Sorted using a star drive bit, tapped into the rounded allen bolt head, as a last resort, fitted to a torque wrench set @ 10Nm. Prior to attempting to drill it out....eek!
You absolutely must have some quality allen keys for the Dukes. I've had terrible bother with a cheap set I would have bought from Lidl or wherever years back. I changed over to some better and more expensive keys and now I can shift even the tightest bolts without rounding the heads out.
Wera make a nice set https://www.amazon.co.uk/WERA-Multi...coding=UTF8&psc=1&refRID=2FF7PYQXZ2JP3EH5RRSM
