Wheel kits
AR1 Wheel Kit For CRF250R/450R 36 Stainless Steel Spokes
- Part number
- D4777
- OEM Part number
- W21-51051
- Type
-
Rear
- Size
-
18×2.15"
- Collar (Hub / Rim / Nipple)
-
Red / Black / Silver
Product Description
Special Rear Wheel Kit for CRF250R/450RA dedicated rear wheel kit for CRF250R/450R, upgraded to a 36-spoke specification—standard is 32 spokes—commonly used by top HRC and AMA teams for higher strength. This complete kit combines an R50 rim with the AsterLite CRF250R/450R hub featuring 36 stainless steel spokes.
- Rim
- Hub
- Spoke Set
- Nipple Set (1 wheel, pre-assembled)

![]() | Adopted R50 rim black Racing spec rim designed for use in MX and ED racing. The rim is made of A7050 T6 aluminum alloy, the most suitable material for the rim, and the cross-sectional shape was pursued. The rim is designed to balance the conflicting conditions of strength and weight. |
![]() | High-strength aluminum alloy machined to ultra-high precision Designed with weight consciousness in every detail, all models of domestic vehicle manufacturers are lighter than the genuine product. The side wall cutouts not only reduce weight but also provide excellent mud removal performance. All internal parts such as bearings are pre-press-fitted, and genuine parts can be used as replacements because they are compatible with genuine parts. |
![]() | Aluminum-miniple & steel/stainless steel spokes High-strength aluminum alloy nipples are used. Special Z-WHEEL spokes are used. |



