Blackspire's motto is "built for rough play," and when you look at what they have to offer, you'll understand what they are talking about. The Stinger is a lightweight and simple chain tensioner / chain guide that works with up to 40-tooth chainrings. It is designed to work with double chainrings but can also be converted to work with a single chainring using Blackspire's Blackguard inner plate (sold separately).
Installed this on my 2011 Yeti 575. It installed very easy but the alignment was off just ever so slightly so the chain wasn't moving back and forth on the roller quite right. I don't think this was the fault of the chain guide though and a very thin .5mm spacer on the right bearing cup of the BB moved the right crank arm out ever so slightly enough that everything lined up perfectly and it has been flawless, keeping the chain from slapping around on rough descents.
Using it with an XTR 2x10 setup on an Santa Cruz Bronson...although not quite sure I have it dialed in perfectly as I need to be careful when shifting. That may be my der adjustment, though as I haven't dropped a chain while not shifting. I bought this because its is much simpler than many of the other 2x guides out there.
I purchased one of these along with a RF narrow wide ring. I got rid of all the other chain management stuff, lightened my bike, cleaned up the looks and it works flawlessly. I have yet to loose a chain! plus you can get the wheel guide to match your bike and also use it on a 2 by setup.
Installation was fast and easy and it does the job. No more dropped chains when dropping off stuff!
I have had both the BB Mount and ISCG-05 version of the stinger. This perfected my 2x9 drivetrain and took the noise out completely without the need for a clutch rear derailleur. Great price point and probably the best option on the market!
I put this on a Yeti ASX and needed an ISCG adapter. Single ring front. These guides work great once you fit them properly. I had to bend mine in a couple of places to get the exact chain alignment. After I did the chain doesn't derail. Best thing is there is no more chain rattle or slap.
awesome product at a discounted price. Very durable in the rocks and keeps you moving down the trail. Highly recommended
This Guide Keeps my bike quiet and my chain in place.For the money and the ease of install it can't be beat.Plus it's light :)
Excellent guide for the money. Easy of install. Rollers are replaceable.