Hi mate, 55mm is the size & it's the same as a 1098 1198 , you can get them off e-bay or JHP Coventry . It's a bit of a bugger to get off the first time but when you get the hang of it it's easy . Let's us know how you get on .
Indeed it's a bit of a bugger. Torque setting is 230Nm. I bought a 55mm steel socket from Ebay and a 2ft wrench, still couldn't move the wheel nut. Had to get a 3ft piece of metal bar to fit over the wrench for extra leverage, then it moved !!!! It's also a two man job, got my lad to sit on the bike applying the rear brake (hard). But as mentioned once you get the hang of it it's easy. Just remember to regrease the nut when reapplying.
buy yourself a rechargeable impact gun best toy ever, been using one in the work shop full time for years nothing it wont take off.
Breaker bar is best to undo the nut. Not very expensive and handy to have in the tool box. AK730 BRAND NEW SEALEY 1/2" SQUARE DRIVE 600MM BREAKER BAR | eBay
