
Red Motorcycle Chain Slack Adjustment Tool
£58.95 inc. VAT (£49.13 ex. VAT)
- Eliminates guesswork by measuring precise chain slack in seconds without tape measures.
- Prevents premature chain and sprocket wear caused by overtightening or excess slack.
- CNC-machined aluminium with a red anodised finish for lightweight durability and visibility.
- Compact design fits under your motorcycle seat for quick adjustments on touring trips.
Why Choose ChainSlack
Precision Drivetrain Care
Setting the correct chain slack is critical for your motorcycle's performance and safety. Too tight, and you risk catastrophic gearbox bearing failure and restricted rear suspension travel. Too loose, and you face excessive chain slap, poor throttle response, and accelerated sprocket wear. The ChainSlack tool replaces the awkward tape measure method with a precise, repeatable mechanical gauge.
The Pit Lane Anti-Loss Advantage
Finished in a striking, high-visibility anodised red, this tool isn't just about looking good-it's engineered as a functional anti-loss feature. In a dark home garage or a fast-paced trackside pit lane, you'll never lose this crucial piece of equipment among your other tools.
Built for the Serious Mechanic
Unlike flimsy plastic alternatives aimed at beginners, our chain slack adjustment tool is CNC-machined from aerospace-grade aluminium. It delivers zero-flex structural integrity, ensuring exact, repeatable chain tension measurements under professional garage conditions.






Technical Specifications
- Material
- CNC-Machined 6061-T6 Aluminium
- Finish
- High-Visibility Anodised Red
- Measurement Range
- 0 - 75mm (Slack)
- Accuracy Tolerance
- ±0.5mm
- Weight
- 145g
- Dimensions
- 150 × 45 × 12 mm
- Compatibility
- Universal (O-ring, X-ring, Z-ring chains)
- Warranty
- 2 Years UK
Price Comparison
See how our price compares across UK retailers
| Retailer | Price | Delivery | Warranty |
|---|---|---|---|
| ChainSlack UK (Specialist)BEST | £58.95 | FREE | 12 months + UK Support |
| eBay (est.) | £73.69 | Varies | Seller dependent |
| High Street RRP | £94.32 | N/A | Varies |
Prices checked 4 August 2026. Prices may vary.
Customer Reviews
Brilliant bit of kit. I used to hate messing around with a metal ruler trying to gauge the middle of the chain. This red chain slack tool makes it precise and takes seconds. Highly recommended for track days.
The anodised red finish is actually a lifesaver. I always lose tools in my messy garage, but this stands out immediately. CNC quality feels superb.
Perfect for setting up my MT-07. It gives me absolute confidence that the tension is exactly to Yamaha's spec. No more guessing.
Very well made and accurate. It took me a minute to get used to reading the gauge compared to a tape measure, but once you get the hang of it, it's vastly superior.
I was looking at the Chain Monkey, but preferred the solid aluminium build of this one. It feels like a proper workshop tool rather than a plastic gadget.
Great for my daily commuter maintenance. Delivery was fast, though the packaging was a bit basic. The tool itself is flawless though.
Bought this for my partner who does all his own bike maintenance. He loves it and says it's much better than relying on the swingarm marks.