Hi, I'm new to this forum and forums in general. I bought a 996S last September, 8.5k and fairly standard except carbon bodywork. In October a white van pulled out in front of me at a roundabout and I had to put the bike down to avoid it. Bike was a Cat D. I bought the bike back from insurers and have been putting it back together. I want to do track days so managed to buy a 996R ohlins front end and yoke and mag wheels which I've installed. Two problems have occured which I'm confused about and was hoping someone would be able to help. Firstly the lockstops on the yoke miss the stops on the frame. Assume the lockstop position is different between the S and R models or am I being stupid and done something wrong on install? If I'm not being stupid what's the best way of resolving this? Secondly, the front wheel only spins for one revolution before sticking. I've double checked everything and have all the bits in the correct place and have followed the general consensus from forums on wheel installation. It seems to be the speedo drive causing the friction. Is this normal or how can I rectify? I have an Exup and the front wheel will spin for ever so it just doesn't seem right. Photo pre-accident attached. I appreciate any assistance. Cheers.
Lockstop orsterring lock location may be due to the angle of the forks being altered, this is often done to sharpen up the handling but does move the steering lock ring further forward. Mine has been done like this, and I have considered returning it to standard position (and @bettes on here has reset his, and has offered to help me sort mine - thanks Ian, I am just a bit of a disorganised sod when it comes to doing work on the bikes) regarding the wheel - if it is just the speedo drive/cable, and you are only using for track days, then just remove the drive inners and the cable as from what I have been told, we don't want'need speedometers on track bikes. Pete
All I know is that 998R discs have a 15mm offset rather than the...damn forgot the normal offset. 22.5mm? I know this as I have R discs on my 916. I had to use disc bolts with a really low head height to avoid the speedo drive. Button head allens. The lock stock tang hangs from the frame and can be bent by an off. I heated mine up with a torch and bent it back on my 1198 when someone had me over it. Otherwise its a pain in the ass MOT time.
Picture of steering lock missing may help, my 1st thought was head angle, easy to tell by which steering damper bracket is used on the frame. Wheel - have you tried spinning with the brake calipers off?
Thanks for the replies. The steering angle is on the road setting (I believe) and the yoke stops are missing the frame tab on the inside so I would have thought that changing to the race angle will take the stops further from the tab. The tabs don't appear to be damaged but I'll post a photo later when I'm back from work to show you. I also want to be able to use the bike on the road so will need to keep the speedo drive active. The wheel is only spinning for one revolution when I have the calipers off. I'll check the disc bolts but don't think they were catching the speedo drive. Really appreciate the comments. Cheers.
Check the speedo drive is fitted correctly into the hub. There are two tangs that have to sit inside the drive ring. If not, the drive gears can bind.
In my base 2001 996 my front wheel spins 1 1/4 to 1 1/2 turns. Can hear the pads on the discs slowing it. Steering stoppers fit inside lugs on frame. I have it on road setup.
Oops. Looks like I was being stupid. I assumed that the yoke stops should hit the lugs. You're picture is how mine look. Bars come in quite close to the air ducts which is what caused concern initially so I may just need to move the bars out a smidge. Sounds like the sticky wheel is fairly normal then. I'm used to Jap stuff so guess I need to get used to the Ducati quirks! Seriously appreciate the help from everyone and look forward to being part of the forum. Cheers.
Unless my steering stops are knackered too :-/ not sure how mine would spin with calipers off, i'd expect more to be honest.
Yep, mine does seem to be rubbing badly so I will check it over thoroughly to make sure I've installed everything correctly. Thanks again.
That's probably the problem. Some were fitted with 15 mm offset and some with 10mm. Parts bin jobby. Not all 996R nor 998R s fitted the same. You need to measure the thickness of the caliper mounting fork bottom and compare. Start by measuring the distance between discs, remove the front wheel, then measure the distance between the gap between brake pads.
I have Ohlins FG43 R&T 6 bolt forks on 916. I did a radial conversion but could only source the 108mm brackets, thus I had to shim and use R discs to get it all to work.
I can't speak for the 748R or 998R or 996 SPS with first hand experience. It would seem from reading many posts the majority suggest the 748R and 998R are 15mm offset discs. I bought a 998FE front end for a 998S Bettes mentioned the 15mm offset, my fork bottoms did not have a machined/milled inset for the calipers.. these forks were effectively the same distance either side of the casting line, assuming they are all cast the same, which is probably not the case. Kind of off topic then I guess... I spoke to a Ducati specialist who said the Ohlins fork part No. is an Ohlins no. not a Ducati part no. Elsewhere someone suggested the Ohlins part no. will give a date of manufacture, that would make mine 2004... but I wouldn't trust that, it was a forum suggestion I found via google. Ohlins did not respond to that question.. After speaking to Ducati regarding discs, they would not tell me the part no's, apparently some way of stopping people buying parts else where. However they did confirm via their database, my bike a 998S 2002 EU, has the exact same disc part no. as the 996R and 998FE which would be a 10mm off set disc then. Which works with my fork offset standard discs in these ohlins forks. Note: some confusion according to Ducati, the EU "998S" 2002 model does not have the same discs, as the base model 988, nor does the 998R. or any other Bostrom, Bayliss 998 model.. Ducati were specific about the "2002" bit too... not sure why. Ducati also said, people selling bikes do not all have OEM parts on them, but simply put if I were to ring up and order genuine discs, I'd get the same one's for a 996R, 998FE, 998S < this is also listed in the various bike specific parts manuals I have.. As for the speedo drive. I ordered a genuine new 998(S) one from Ducati. It was not the same as the one I took I out, so who knows what was in it. The internal steel spacer was the same length & i.d. which is the critical measurement I guess but, the plastic housing outer radius was a little different... so had to give it a trim. The arm (on the Speedo drive housing) that rests against the lug on the fork leg was removable and reverse able... So it did fit with a tweak. This set up has worked fine to date.
