KTM 1390 Superduke R Chain Size and Sprocket Teeth
GarageDex's manufacturer-catalogue data shows the 2025-2026 KTM 1390 Superduke R uses a 525 chain with 17-tooth front and 38-tooth rear sprockets from the factory. (118 links)
Chain and sprocket fitment by year
| Years | Chain | Links | Front teeth | Rear teeth |
|---|---|---|---|---|
| 2025-2026 | 525 | 118 | 17 (JTF1904RB) | 38 (JTR893ZBK) |
Part numbers in parentheses are the manufacturer's stock-gearing sprocket codes, useful for matching a replacement.
Chain and sprockets for the KTM 1390 Superduke R
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 KTM 1390 Superduke R use?
GarageDex's manufacturer-catalogue data shows the 2025-2026 KTM 1390 Superduke R uses a 525 chain with 17-tooth front and 38-tooth rear sprockets from the factory. (118 links)
What is the stock gearing on a KTM 1390 Superduke R?
17-tooth front and 38-tooth rear from the factory, part numbers front JTF1904RB, rear JTR893ZBK.
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 KTM 1390 Superduke R chain have?
118 links at stock length and gearing, per the manufacturer catalogue.
Other KTM 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.