So I picked up a big wheel 140cc pit pro, well at least that's what the guy has told me it is. He got it for his misses who never used it. He used it a hand full of times the rest of the time it was in his garage for years. The rear shock is cactus, no repound at all very slow response after compression. I have taken the old shock out and it's 170mm from eye to eye. I have tracked down a guy selling a DNM brand new but it's 180mm. I have noticed on here most other big wheel set ups have a lot bigger rear shock then 170mm. Will the extra 10mm be a big issue or not really. I will try and upload pics as soon as I work how how hahaha