What's the length from pivot centre to axle? Also what's the bearing to bearing width at the front pivot and is it symmetrical from the centre of the bike? Cheers...
IIRC it goes somewhere like this 998 480mm 998rs 495mm 1098 505mm 1098rs 515mm streetfighter 525mm obviously there is scope from these maximum extended to be maximum or go right down to the minimum for example a street fighter arm can be cut away at the point here the front of the wheel touches the arm increasing clearance ( a factory problem with 1098 1198 arms!) this then enable you to utilise the adjustment right as far forward as you can and gives you 1098rs length! the arm is symmetrical and the bearing width at the front pivot is the same as 998 999 etc etc..... god i am good!
oh with a ducati swing arm length is good but wheel base length increases which is not so good it does enable you to utilise bigger number trail adjustments 25 27 30....to take a bit out of the wheel base....
Thanks for your most helpful and detail reply - I just knew one day you would come good Just thinking for my KR1000 rep No2 (modified version) and need circa 510mm. Do you know the width of the pivot point bearing to bearing oh wise one?
Indeed and going slightly O/T, I was curious to know various geometry numbers re. my 916 vs. M900 so was measuring this morning and it seems odd that the 916 series had such a short swingarm? Considering that the 916's predecessor; 851/888 had, or at least could have, a longer swingarm (I assume, as my measurements are from an M900 which uses the same arm). I have 480mm (as above) for the 916 but 510mm for the M900 - now I do have the Monster on a long chain so have the wheel quite far back but it looks like the length is adjustable between about 475-515mm, dependent on chain length & sprocket sizes. Incidentally the Monster wheelbase is only 17mm longer overall than the 916, due to a steeper steering head angle I assume? Anyone know why the move to a shorter arm on the 916 range, especially considering the race bikes used a longer one?
Found it thanks: 244.48 but looks on the diagram that it is the casting width but that will be enough for me to check.
its the engine on a ducati thats so long that restricts swing arm length... long swing arm is good....but long wheel base is poor..for a sweet handling bike probably not so important for a cruiser of tourer...ideally we should talk about percentage of swing arm length to wheel base...the higher the percentage the better...look at an R6 swing arm percentage to its wheel base its around 10 % longer than a ducati 998 but a much shorter wheel base....
That's why the R1 was such a leap forward in sports bike design in 1998 with the re designed shorter Engine which increased the swing arm to just over 600mm...
I understand this is an old thread but I think it's the best place to start. I am chasing 1098 swing arm alternatives in hopes of using the new 200/60 slicks. I found 3 different types on ebay in Japan. The seller was kind enough to measure total length. To my surprise all three were 560mm outside to outside. The Pro and the R were the same as stock 1098. IS it possible the Japanese market is all the same? Does anyone have an R or Pro to measure?
OK It took me awhile to get an SF swing arm and to try the longer length of the stock arm. Andyb Can you post pictures of the cut in the SF arm for 200 tires. After opening up the arm and reshaping do you recover with new plate?
