I’ve recently done the 15/42 mod. Absolutely brilliant I’d say…maybe a little bit buzzy for some and puts a dent in your fuel economy. But for me and my riding I love it.
Also as an aside, I recently changed the track bike R6 15t sprocket to a 16t that was easy to swap out with no mods to the chain or cutting or such like.
Another aside if you buy a chain tool buy the pbr one with quadstake anvil. Tremendous bit of kit. If you need the exact part no let me know I’ll dig it out.
Last edited by Ron1000; 28-05-2020 at 07:12 PM..
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