06-14-2020, 01:55 PM
https://www.reddit.com/r/bikewrench/comments/h8mx0m/cant_find_replacement_for_6speed_shimano_cassette/
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(06-14-2020, 01:55 PM)TGIII Wrote: Hey everyone. I'm new to working on bikes and have been cleaning mine from using it at college. I replaced the chain since it was very stretched. The new chain was slipping a lot. After searching for why that was happening I concluded that I needed to replace my sprockets. The tool fitting rotates with the sprockets, so I think this is a cassette style. However, I cannot find any Shimano 6-Speed cassettes. I also found someone on a forum saying Shimano never made 6-speed cassettes. I don't want to have to buy a 7-speed shifter or attempt to make a 7-speed cassette work with the 6-speed shifter on my bike. If anyone has any advice I would really appreciate it. This forum was recommended to me after I posted this question on reddit. I have included a link to that post. I also attached a picture. The tool fitting reads "Shimano Hyper Glide-C". Thanks in advance.I don't recall Shimano making a "HyperGlide" 6 speed cassette (UniGlide, yes). This may have been a 7 speed originally and is using a spacer(s) to account for the missing sprocket. It certainly does not look that worn on the teeth. Maybe just replace the sprocket(s) that you need; you should be able to get them as a separate items without having to replace the entire cassette unless you want to change your gear ratios. I think the UniGlide had a threaded sprocket on the small gear; your freehub will tell that that story if it has any threads, don't think Hyperglides had any threaded sprockets. I may be wrong as I am not intimately familiar with these Shimano set-ups. Do you know the year? Make sure you have the correct chain width for the set-up, you may require a 7 speed compatible chain whereas a 6 speed chain would have been wider (causing the slippage?,just guessing!); ask your bike shop people, they should know. I have many parts and just swap the stuff out with newer or older variants until I dial it in if I don't know what was original; always best to verify what an old part was and match it if possible since I assume it was working properly for you at some time previous to the excessive chain wear.
https://www.reddit.com/r/bikewrench/comments/h8mx0m/cant_find_replacement_for_6speed_shimano_cassette/