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Engines and Components› Camshafts and Valvetrain

Yoshimura

ST-2M Camshaft Kit

Name: ST-2M Camshaft Kit
Brand: Yoshimura
SKU: 700XX137200

$1,570.43

SKU: 700XX137200

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Overview

The Yoshimura YZF-R7 22-25 Camshaft Kit ST-2M is a performance camshaft kit designed for the Yamaha YZF-R7. It features full billet intake and exhaust cams made by Yoshimura Japan from a special steel alloy. This kit includes matching valve springs and utilizes OEM cam sprockets.

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The Yoshimura YZF-R7 22-25 Camshaft Kit ST-2M is engineered to enhance the performance of your Yamaha YZF-R7 engine. Crafted from a special steel alloy billet by Yoshimura Japan, these full billet intake and exhaust cams offer increased durability and quality compared to OEM or reground options. The kit features an intake lift of 9.70mm with a duration of 252 degrees, and an exhaust lift of 8.40mm with a duration of 248 degrees. It utilizes OEM cam sprockets for integration. However, it is crucial to note that this camshaft kit is NOT decomp compatible and may require a high-power lithium battery for easier starting. Furthermore, aftermarket pistons are required to accommodate the increased valve lift. Installation of these cams is not a simple drop-in replacement and requires familiarity with engine building. The cams must be precisely degreed during installation to ensure proper function. This product is intended for closed course competition use only and is not legal for use on public roads or land. It is also not compatible with OE and aftermarket accessories not found on a factory-equipped motorcycle. Attention international customers: This product was designed and tested for the U.S. marketplace only, and compatibility may vary in other regions.

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.

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Specifications

Brand	Yoshimura
Part Number	700XX137200
Category	Engines and Components

Videos

Bike Build Breakdown: Yoshimura R&D’s YZF-R7 Race Bike

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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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