What fork seal fits a Triumph Street Triple S?

The Triumph Street Triple S uses a 43 mm fork with 43x55x10.5 oil seals. We stock the manufacturer-verified seal and bushing kits for it; matching is done off the verified application list, not just the seal size.

What size is the Triumph Street Triple S fork?

The Triumph Street Triple S has a 43 mm fork with 43x55x10.5 oil seals.

Can I use any seal with the same dimensions?

No. Fork seals can share a size and still not seat correctly in a different fork design, so use the seal verified for your bike. The kits listed here are confirmed by the manufacturer to fit the Triumph Street Triple S.

Triumph Street Triple S Fork Seals

Q: What fork oil does the Triumph Street Triple S use?

The Triumph Street Triple S uses 10wt fork oil (factory fill Kayaba G10 (SAE 10) — Showa SS-8 on some).

The Triumph Street Triple S runs a 43 mm front fork, oil seal 43x55x10.5.Every kit here is verified by the manufacturer to fit this exact bike. Fork seals can share a size and still not seat in a different fork, so we only list what is confirmed for your bike.