Use the Dirt 3 with Shimano outboard-bearing crank/BB combo (very common) on triple chainring setups. The Dirt 3 enhances shifting performance and prevents dropped chains on Shimano triple MTB drivetrains.
Mounts seamlessly to your bike by replacing one of the 2.5mm spacers found between the bottom bracket cup and the frame.
Prior to installing the K-Edge, I would probably drop my chain once or twice on my weekly MTB rides. Granted, I do like jumping gaps and riding down stairs everyone once in a while. After installing the K-Edge, I have not dropped a chain. Dropping a chain would be nearly impossible unless you lifted the bike upside down and pulled the chain over the K-Edge. Now I have no worries about shifting down and dropping my chain onto the BB. Trust me, you don't want to drop the chain and scratch up your frame. I paid the price and had to get my frame re-faced due to my chain marring the edges up. You need smooth edges for the external bearing BBs. The dropped chain would have been disastrous if I was riding a full carbon MTB. Highly recommend the product for anyone who is using an external bracket bottom bracket (i.e. Shimano XT Hollowtech II) with the 2.5mm spacers and would like to stop worrying about dropping the chain on the down shift.
Start typing your question and we'll check if it was already asked and answered. Learn More
Do not include HTML, links, references to other stores, pricing or contact info.
My question is about:
If your question is about more than one item, click + to add them.
No questions have been asked about this item. Be the first!
Questions For Similar Products
Jenson USA ships worldwide, including APO/FPO addresses. For a quote, simply add the items you are interested in to your shopping cart and look for the "Shipping Options" box. You don't have to login or create an account to see shipping charges.
Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.
Get free 1-day California shipping with your $50 purchase today, on most orders. Please note this offer is only available to physical shipping addresses in California(no PO Boxes), and oversize charges still apply on some heavy/large items
Designed with extreme gravity riding in mind, the
Twinty chain guide fits 2x drivetrains and keeps your chain from falling off even under the most extreme conditions. Bottom bracket mount CNC'd 6061 T-6 Guide Frame Lightweight molded thermoplastic components Made ...
MKS Track chain tensioners, perfect for adjusting chain
tension on your fixed gear or single speed bike. Fits 5mm width dropouts Includes two tensioners Includes hardware and tools Unit of Sale: Pair Fits: 10mm Axle Intended Use: Track, Fixed Gear, ...
MRP Micro XCG BashguardMRP continues to show their
knack for manufacturing products that are in tune with the needs of today's mountain bikes, and their riders with the Micro XCg bashguard. The new Micro XCg answers the call for small-ring ...