KITACO Pulley Boss for 50 Power-Up DJ-1-R/DJ-1-RR/G'/Lead 50/Joker 463-1055000

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[Important Notice] Items are made for the Japanese domestic market: - Products: Official Japanese market items (Manufacturing origin varies by model). - Voltage: AC 100V / Type A plug (Voltage converter may be needed). - Language: Japanese by default (Unless specified in title/images). - Region: Please check system compatibility before ordering.

Follow our shop for new arrivals! Please leave a review when your item arrives. ―・―・―・―・―・―・―・―・―・―・―・―・― Compatible models: DJ-1-R: FNO, AF12-1400013~ | DJ-1-RR: All models | G': All models | Lead 50: AF20 All models | Joker 50: All models Inner diameter × Outer diameter × Overall length (boss body): φ12/φ20/36.7mm Replacement spacer shim (0.3mm) KITACO Part Number: 0900-463-90007 Replacement spacer shim (0.5mm) KITACO Part Number: 0900-463-90008 By changing the length of the pulley boss located in the center of the pulley, it becomes possible to move the drive belt further outwards from the pulley, which can increase the top speed. The two included shims can be installed in different positions, allowing for fine-tuning of acceleration characteristics. *The Kitaco Power Drive Kit and High Speed Pulley Kit for 50cc class motorcycles are designed based on the standard pulley boss. They cannot be used in conjunction with the Power Up Pulley Boss.