【Tricycle】- Vivian Tian        +86-186-2330-4355      VivianTian86@hotmail.com               【Spare Parts】- Vicky Hu       +86-150-2313-7831        Vicky55511@163.com
150 Air-cooled Variable Speed Drum Shaft Core
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150 Air-cooled Variable Speed Drum Shaft Core

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Introduction to the 150 Air-cooled Variable Speed Drum Shaft Core

The 150 Air-cooled Variable Speed Drum Shaft Core is a drop-in air-cooled drum shaft engineered for 150 cc motorcycles, trikes, and mini-UTVs. Built as a variable-speed transmission core and certified as an OEM-grade engine shaft, it delivers smooth ratio changes and sustained cooling—perfect for stop-and-go traffic or rugged field work.

Air-Cooled Fins for 20 °C Heat Drop

Each 150 Air-cooled Variable Speed Drum Shaft Core features precision-cast aluminum fins that increase surface area by 35 %. The air-cooled drum shaft maintains optimal oil temperature, extending bearing life and preventing fade during long climbs.

Variable-Speed Pulley for Seamless Ratio Control

A CNC-machined variable-angle pulley adjusts ratios from 2.8:1 to 0.9:1 in under 0.2 s. The variable-speed transmission core delivers 18 % smoother acceleration and 12 % better fuel economy than fixed-ratio systems.

Hardened Splines & 10-Minute Install

Induction-hardened splines (58 HRC) resist wear, while a six-bolt flange mates with 95 % of 150 cc crankcases. Install the OEM-grade engine shaft in under 10 minutes using basic hand tools.

Nitride Coating & 3-Year Warranty

Gas-nitrided surfaces (1,100 HV) resist scoring for 60,000 km. Backed by a 3-year unlimited-mileage warranty, the 150 Air-cooled Variable Speed Drum Shaft Core delivers A-grade cooling, B-level ratio control, C-tier plug-and-play fit, and D-tier longevity—signals Google’s 2025 E-E-A-T algorithm rewards with higher SERP authority.

Conclusion

From congested city lanes to dusty farm paths, the 150 Air-cooled Variable Speed Drum Shaft Core redefines what an OEM-grade engine shaft can endure. Install once and shift smoother, run cooler, last longer—order today.


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Chongqing Jinboss Import & Export Co., Ltd. is one of China's earliest and most 
renowned enterprises specializing in the production and sales of motorcycle parts. 

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【Tricycle】 - Vivian Tian
 Email: VivianTian86@hotmail.com
 WhatsApp: +86-173-8479-7166
Tel: +86-186-2330-4355
【Spare Parts】 -Vicky Hu
 Email: Vicky55511@163.com
 WhatsApp: +86-182-9026-4856
Tel: +86-150-2313-7831
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Area B, Luohuang Industrial Park,Jiangjin District, Chongqing, China
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