Posted May 31, 201311 yr I recently purchased replacement components for my DT. Included in my shopping was a Chain and Sprocket upgrade off eBay. Included was a 525 chain replacing the standard 428. The Sprockets in the kit purchased were 13/39T. I know this can be done as my bike already runs this configuration, fitted by its previous owner. I bought new items as the old components have had their fair bite of wear and tear over the years and in my opinion need replacing. I'm in a replacing/ refreshing mood, my next plan is a complete exhaust upgrade. My question is, if I was to at some point in the future put a lighter 39T Rear Sprocket on to the bike instead of a heavy Steel part. What bike out there has a lighter 39T Rear Sprocket that'll fit straight on my bike? Am I also right in thinking, a 520, 525 and a 530 chain will all fit on my bike with this new Sprocket set up? I Googled it and one site says, the 5 refers to the Spacing of the Pins whereas the 20/25/30 relates to the chain/roller/link width! Anyone else done this upgrade or any others on their DT175MX?
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