Wheel kits

AR1 Wheel Kit Racer

Part number
D4768
OEM Part number
W21-57011

Type

Rear

Size

19×1.85"

Collar (Hub / Rim / Nipple)

Blue / Black / Silver

YAMAHA Rear

YAMAHA Front

HONDA Front

HONDA Rear

KAWASAKI Front

KAWASAKI Rear

SUZUKI Front

SUZUKI Rear

KTM Front

KTM Rear

HUSQVARNA Front

HUSQVARNA Rear

Product Description

A complete high-performance wheel kit built with top-spec components designed for serious off-road and racing applications.
By combining Z-WHEEL’s R50 rim, precision-machined Asterlite hub, aluminum nipples, and reinforced stainless steel spokes, this kit delivers superior strength, rigidity, and weight savings compared to standard OEM wheels.

[ R50 Rim ]
Racing-spec rim crafted from A7050-T6 aluminum alloy, engineered for an optimal strength-to-weight balance.
The cross-sectional design maximizes durability while minimizing mass, providing a perfect combination of rigidity and lightweight performance for both trail and track.

[ Precision-Machined Asterlite Hub ]
CNC-machined from a solid block of high-strength aluminum alloy, reducing weight while maintaining exceptional strength.
Premium finish with side cutouts for improved mud-shedding and all-terrain performance.

[ Aluminum Nipples & Reinforced Spokes ]
Equipped with Z-WHEEL high-strength aluminum nipples for reduced weight.
Matched with thickened stainless steel spokes for maximum durability and efficient power transfer.
Rear wheels feature an increased spoke count for superior lateral rigidity and reliability under extreme conditions.

[ Modern Racing-Level Performance ]
Upgrade from older or stock wheels to achieve strength and stiffness comparable to today’s top motocross and enduro machines.
Provides consistent performance across a wide range of off-road and competition conditions.


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.
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