Yamaha TT-R90 Fork Seals

The Yamaha TT-R90 runs a 26 mm conventional front fork, oil seal 26x37x10.5.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.

  • Fork tube26 mm
  • Oil seal size26x37x10.5
  • Fork typeConventional
KitYearsSeal sizeReplaces OEM
55-100 2000–2008 26x37x10.5 n/a
57-133 2000–2008 n/a n/a
56-100 2000–2008 n/a n/a

Verified fork kits we stock for your Yamaha TT-R90

Fork Oil Seal Kit — Honda C125 ABS (2019-2024) +
Fork Seal Kit
Fork Oil Seal Kit — Honda C125 ABS (2019-2024) +
$18.24
Fork Dust Seal Kit — Suzuki DS80 (1978-2000) + 9
Fork Seal Kit
Fork Dust Seal Kit — Suzuki DS80 (1978-2000) + 9
$19.87
Fork Oil & Dust Seal Kit — Suzuki DS80
Fork Seal Kit
Fork Oil & Dust Seal Kit — Suzuki DS80
$38.50

Fork oil for your Yamaha TT-R90

A fork-oil change on the Yamaha TT-R90 uses 10wt fork oil. Factory fill: SAE10W (KYB G10 / equiv).

Maxima Fork Oil 10W — 1 Liter
Fork Oil
Maxima Fork Oil 10W — 1 Liter
$13.99
Motorex Racing Fork Oil 10W — 1 Liter
Fork Oil
Motorex Racing Fork Oil 10W — 1 Liter
$19.99