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Laser cut tool for accurate monitoring of chain wear

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Product code: 15906885 / 327426

This precision tool made by Birzman is CNC machine laser cut for absolute accuracy enabling you to measure the chain tension.

Chain stretch can occur over time and replacing a whole chain can be expensive and inconvenient, especially if it breaks or loses tension causing the chain to frequently come off. The way to avoid this is to regularly check for chain wear. This tool enables you accurately measure chain tension and to identify if (and when) a link has undergone chain stretch of between 0.75% and 1.0% of the standard 12.7mm chain link spacing.

This tool is also useful for regular maintenance or assembly to hold the chain still whilst you work on it.

  • Size: 136 mm
SHGC02 8301200000#
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This product qualifies for the following delivery methods

Standard UK Delivery (3 - 5 Days) (FREE)


A tracking link will be provided once your order is despatched.

Premium Express Delivery (£6.95)


A tracking link will be provided once your order is despatched.

Bike Delivery (Up to 7 Days) (FREE)


This applies to all bikes, and these orders are upgraded to a specialist courier service.

Free Standard In Store (FREE)


Collect In Store (FREE)


Delivery times and days vary for each store, but we will contact you when your order is ready to collect. Please do not contact our Customer Care team for updates until after the estimated delivery time in your order confirmation email.

Premium Next Day (£6.95)


Next day cannot be offered in the following areas, and will be attempted within 48 hours: BT (all Northern Ireland), GY, IM, JE, KW11-17, HS, PH32-35, ZE.

International delivery

From £4.99 to over 200 countries worldwide. Some restrictions apply.


Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.

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