Drivetrain› Belt and Chain Drive

Supersprox

15-Tooth Front Countershaft Sprocket

$34.95

SKU: CST-1591-15-2

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Overview

The Supersprox CST-1591-15-2 is a front countershaft sprocket designed for chain drive systems. It features a 15-tooth design and is compatible with 525 pitch chains. Made from SCM-435 Carbon Free steel with an ultra-hard surface layer, this black sprocket is engineered for durability and reduced friction.
Show original supplier description
The Supersprox CST-1591-15-2 is a high-performance front countershaft sprocket, specifically designed for motorcycles utilizing a 525 chain pitch. Its construction features a fully lightened design with radial holes to reduce rotational mass, while the ultra-hard surface layer minimizes friction, preventing power loss often caused by chain drag. Crafted from SCM-435 Carbon Free steel and carbon impregnated, this sprocket ensures exceptional strength and durability, with a refined core structure that prevents teeth breakage even when worn. It is Made in Europe to exacting standards. The black finish not only adds a sleek aesthetic but is also part of its functional design. This 15-tooth sprocket is compatible with a range of Yamaha models, including the FJ09 900 (2015-2016), FZ07 (2015-2017), FZ09 (2014-2016), FZ09A 900 (2017), FZ10 1000 (2017), FZ8 (2011-2013), MT-07 (2021-2022), MT-07 ABS (2018-2020), MT-09 (2021-2023), and MT-09 ABS (2018-2020).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSupersprox
Part NumberCST-1591-15-2
CategoryDrivetrain

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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