BMW S1000 RR Chain Size and Sprocket Teeth
GarageDex's manufacturer-catalogue data shows the 2019-2020 BMW S1000 RR uses a 525 chain with 17-tooth front and 45-tooth rear sprockets from the factory. (120 links) Chain and sprocket sizing varies by year - see the table for each range.
Chain and sprocket fitment by year
| Years | Chain | Links | Front teeth | Rear teeth |
|---|---|---|---|---|
| 2019-2020 | 525 | 120 | 17 (JTF404RB) | 45 (JTR10) |
| 2012-2018 | 525 | 120 | 17 (JTF404RB) | 45 (JTR7) |
| 2009-2011 | 525 | 120 | 17 (JTF404RB) | 44 (JTR7) |
Part numbers in parentheses are the manufacturer's stock-gearing sprocket codes, useful for matching a replacement.
Chain and sprockets for the BMW S1000 RR
Match the pitch (525) and tooth counts in the table - chain and sprockets are a matched set, and a mismatched pitch will not fit the sprockets at all.
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Frequently asked
What chain size does a BMW S1000 RR use?
GarageDex's manufacturer-catalogue data shows the 2019-2020 BMW S1000 RR uses a 525 chain with 17-tooth front and 45-tooth rear sprockets from the factory. (120 links) Chain and sprocket sizing varies by year - see the table for each range.
What is the stock gearing on a BMW S1000 RR?
17-tooth front and 45-tooth rear from the factory, part numbers front JTF404RB, rear JTR10.
What changes if I go +2 teeth on the rear sprocket?
Going up 2 teeth on the rear sprocket (or down 1-2 on the front) lowers the gearing: quicker acceleration off the line, but a lower top speed, and the chain usually needs to be 1-2 links longer to keep enough wrap on the front sprocket - a shop or the sprocket's fitment chart will confirm the exact link count for that combination. This is a generic mechanical rule, not a claim about this specific model's aftermarket options.
How many links does a BMW S1000 RR chain have?
120 links at stock length and gearing, per the manufacturer catalogue.
Same bike, other specs: BMW S1000RR battery size.
Other BMW models
Source: JT Sprockets - Online Catalogue, a chain and sprocket manufacturer's own application catalogue. Chain and sprocket sizing is factory-stock as JT publishes it - aftermarket gearing changes (see the FAQ) are not reflected here.