BLACKSPIRE is dedicated to the development and progression of riding. They provide components for all levels of riders, at varying price ranges. Canadian made, and built for rough play. Now pick your pleasure and enjoy!
The Blackspire Stinger chain tensioner is one of the most affordable dual-ring chain tensioner in the world! This tensioner converts to a single ring chainguide with the Blackspire Blackguard inner plate. Ultra lightweight, the Stinger works with almost any bashring and features an extremely tough molded Stepped Roller.
Fits up to 40t chainrings
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5.0 GEARS 1 review
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asked by: a guest What are the diameters of the ID, the slots, and the OD? Slots fit 5-bolt spider?
anwered by: canteau This chain guide is designed to mount to frames that have ISCG-05 mounting tabs and would be compatible with 4 or 5-bolt cranks because the guide mounts to the frame and not the crank.
The distance of the center of mounting holes on the left side is 73mm and the distance between the holes on the right hand side is 55.92mm.
A diagram with measurements of the ISCG-05 tabs can be found here:
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I purchased the Stinger for my 2011 Santa Cruz Butcher, which seems to have a propensity for dropping the chain off the small ring when im riding over rocky sections at speed. The install was straight forward, as the bike comes equipped with ISCG05 tabs. The product works great! Since installing it i have not dropped the chain once! For the price it simply is an unbeatable value. I recommend this to anyone who has chain management issues. I had a 3 ring set up and replaced the big ring with a vash and got a larger middle ring to make up for the lack of the big ring. I couldn't be happier with my new set up.