Triumph 900 Speed Triple Fork Seals
Fork specs for the Triumph 900 Speed Triple vary by year (see the table below).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.
| Years | Fork tube |
|---|---|
| 1994–1996 | 43 mm |
| 1998 | 45 mm |
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-122 | 1994–1996 | 43x55x10.5 | Yamaha 5VX-23145-00-00 |
| 55-124 | 1998 | 45x57x11 | Honda 51490-MCA-003 |
| 57-101 | 1998 | n/a | n/a |
| 57-102 | 1994–1996 | n/a | n/a |
| 56-135 | 1994–1996 | n/a | n/a |
| 56-139 | 1998 | n/a | n/a |
| 38-6091 (bushings) | 1998 | n/a | n/a |
| 38-6086 (bushings) | 1994–1996 | n/a | n/a |
Verified fork kits we stock for your Triumph 900 Speed Triple

Fork Seal Kit
Fork Oil Seal Kit — Ducati Paul Smart 1000LE
$18.24

Fork Seal Kit
Fork Oil Seal Kit — Honda CBR600RR (2003-2004) +
$19.12

Fork Seal Kit
Fork Dust Seal Kit — Honda CBR600RR (2003-2004)
$19.50

Fork Seal Kit
Fork Dust Seal Kit — Aprilia Tuono 1100 V4
$19.50

Fork Seal Kit
Fork Oil & Dust Seal Kit — Ducati Paul Smart
$39.78

Fork Seal Kit
Fork Oil & Dust Seal Kit — Honda CBR600RR
$39.78

Fork Bushing Kit
Fork Bushing Kit — Honda CBR900RR — 4 Makes — (PN...
$53.25

Fork Bushing Kit
Fork Bushing Kit — Kawasaki ZR1100 ZRX
$53.25
Fork oil for your Triumph 900 Speed Triple
A fork-oil change on the Triumph 900 Speed Triple uses 10wt fork oil. Factory fill: Showa SS-8 / Kayaba (SAE 10).













