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sbbohr
@dominijk
I have some time on my hands and my chain and chainset are long past their best, it's an old model so I understand I need to replace the BB to use the new chain rings. I made this list of things I need to replace, but as a Brompton newb I want to check I've not missed a part and won't end up with a bike in pieces missing the one thing i need to put it all back together again...
31180 - New spider crankset
31207 - New BB, option to pick Kuosac or Ti part but Ti part needs additional work to frame to fit Ti, a good weight saver given that the new bb is heavier than the older (pre 2007) one
13748 - Chain
40454 - Rear sprocket for 3 speed SRA hub
13755 - Chain tensioner replacement wheels ?