Beta 520 RR 4T Fork Seals
Fork specs for the Beta 520 RR 4T 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.
- Fork typeUpside-down
- ForkMarzocchi 50mm USD (Ducati Diavel 2011-2018) + WP 50mm USD (KTM EXC 1998-1999)
| Years | Fork tube | Fork |
|---|---|---|
| 2010 | 45 mm | marzocchi |
| 2011 | 50 mm | marzocchi |
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-130 | 2011 | 50x63x11 | n/a |
| 55-135 | 2010 | 45x58x11 | n/a |
| 57-138 | 2010 | n/a | n/a |
| 57-140 | 2011 | n/a | n/a |
| 56-145 | 2011 | n/a | n/a |
| 56-149 | 2010 | n/a | n/a |
Verified fork kits we stock for your Beta 520 RR 4T
Fork Seal Kit
Fork Oil Seal Kit — Aprilia EVT Caponord
$19.12
Fork Seal Kit
Fork Oil Seal Kit — Beta RR 4T 250 (2005-2007) +
$19.12
Fork Seal Kit
Fork Dust Seal Kit — Beta RR 4T 250 (2005-2007)
$21.01
Fork Seal Kit
Fork Oil & Dust Seal Kit — Aprilia EVT Caponord
$40.57
Fork Seal Kit
Fork Oil & Dust Seal Kit — Gas-Gas EC125 — 10 Mak...
$39.78
Fork oil for your Beta 520 RR 4T
A fork-oil change on the Beta 520 RR 4T uses 7.5wt fork oil, about 630 ml per leg (oil level 90 mm). Factory fill: AGIP/Eni Fork 7.5 (SAE 7.5).
