Ohlins BM640 STX 46 Street Shock Rear for BMW R ni
Ohlins Suspension - Engineered for Performance(SKU: BM640)
$1,799.95
Find your Bike:
The Ohlins KA504 STX 36 Twin shock is a rear twin-shock upgrade for the Kawasaki ZRX 400. Built around Ohlins’ STX architecture, it’s designed to deliver consistent damping control and clear chassis feedback across varied road conditions. This unit suits riders who want a more controlled, tuneable rear end without compromising everyday ride quality.
Ohlins suspension is developed with a focus on stability, traction and predictable damping behaviour. The KA504 is part of the STX 36 Twin family, aimed at modernising twin-shock performance while maintaining a classic layout.
This is a gas-pressurised rear twin-shock design intended to help maintain damping consistency in demanding use. As an STX unit, it’s engineered for controlled response and improved traction compared with basic twin-shock arrangements.
The KA504 provides adjustable compression and rebound damping, allowing you to tailor the response for road conditions, load and riding pace. These controls are intended to help balance comfort, grip and stability as your setup evolves.
This shock is supplied with an Ohlins factory baseline to provide a solid starting point. Fine-tuning should be completed after confirming sag and overall chassis balance with your rider weight and typical load.
| SKU | KA504 |
| Brand | Ohlins |
| Shipping Weight | 5.0000kg |
| Shipping Size | 0.300 x 0.300 x 0.500m |
| Type | Units |
| Position (Front or Rear) | Rear Twin |
| Shock Length Eye to Eye (mm) | 360.0 +10/-0 |
| Spring Rate Standard | 16.0 - 26.0 N/mm Progressive |
| Stroke Metal to Metal (mm) | 94.0 |
| Product Family | STX 36 Twin |
| Fitted Spring | 00480-12 |
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Ohlins Suspension - Engineered for Performance(SKU: BM640)
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