I want to replace the Allen bolts at either end of the aluminium suspension linkage with stainless. They appear to be M10x40 and M10x50. Can anyone confirm that please? Also, does anyone know if they are standard bolts with mainly thread and a short unthreaded section, that operate inside bushes or are they special bolts with a long unthreaded section and a short thread in order to act as direct pivots? Finally, has anyone got a sneaky method of supporting the suspension to allow the bolts to come out?
Can't quite get in to measure but deffo longer than 40mm Rear looks like 55 - front 45 or 50: take em out to be sure.
What year , eg cast or fabricated swing arm ? Not too sure there is a difference . The lower one if I understand correctly is the one in the swing arm that also goes through the shock absorber so if it is this one (lower )the bolt is not a std bolt - its dimensions are - The hex bolt head itself id 15 mm o.d x 15mm long . The bolt part is 83 mm long with the unthreaded part 65 mm long and the thread itself is 18 mm long , the pitch is 1.25 mm where a std M10 would be 1.5mm pitch so it is a metric fine thread. The upper bolt is again 10mm by probably 40 mm long, as the bolt is screwed into a casting I can only presume it will be a metric fine thread e.g 1.25 pitch as the lower one is fine thread . (bolts are sized by the o.d of the thread and the length of the bolt excluding the head ,so they are measured from under the bolt head to the end of the thread . A set screw is threaded all the the way and a bolt is threaded at one end with the rest being plain and unthreaded . I hope this helps .
Grey, cast swing arm and the ones at either end of the rocking aluminium linkage that screw into the aluminium, not the one in the middle or the one in the swing arm.
Have checked length again and the bolt at the upper end of the suspension unit/rear end of the linkage is çlose to 65mm total length, so 55mm bolt length. The front bolt is 55 mm total, so 45 mm bolt length, as the cap is close to 10 mm. @Exige appears to be correct
If I remember rightly the best way I found was using an Abba stand, with the foot pegs mounting kit. Then with the wheel out you can manoeuvre the swingarm freely as you do what you need with the rear shock.
