Sram Road Front Derailleur Chain Spotter with Washer (Used with Sram Front Derailleur)

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My personal opinion is that any carbon fiber bicycle should be equipped with a chain catcher as protection for the frame. A chain catcher is also good idea for any bike, regardless of construction, because it protects your painted finish, and it keeps you climbing up that hill rather than standing on the side of road, frustrated and getting your hands dirty as your cycling mates ride away. Similarly, some brands and types of chains are directional and designed to only work when installed a specific way. Chain Drop Solutions Swap crankset approaching 20,000 kms (sorry but your PM garbages accuracy badly as materials fatigue) Once fitted it soon blends in and so far have had no need of it. On the plus side if anything were to go wrong with the workings of my chain I now have the perfect ride partner to prevent any serious damage. It's not often you want to wish for some mechanical but in trying to re-create that scenario it has worked. The granting of a best price is not combinable with other promotions (e.g. "free articles) from Bike-Discount.

A chain catcher is a simple tool that makes it impossible for the chain to fall off the small ring into the frame. Most of the time this is a harmless annoyance, but it can do real damage to the frame, particularly on carbon fibre bikes. Chain catchers are not perfect, however. It is possible to “beat them” if you do something seriously wrong, such as trying to shift into the small chain ring, under very high torque and/or while pedaling at a slow cadence. There is no replacement for good technique. For best shifting performance, anticipate those times when you may need to shift into the small chain ring, and do so before you need to. If you find an item at a lower price with another commercial internet retailer, you will receive it from us at the same price, provided the conditions listed in the link are met. The same chain drop also happened when the bike had the 11-speed Ultegra Di2 groupset. I suspect my issue has more to do with the semi-synchro shift mode that i have been using: when i shift to the small ring, the RD automatically shifts two cogs.

SRAM X1 11 Speed Chain

Road chain catchers have been used in the Pro Tour for many years. Events such as Paris-Roubaix would be an obvious race to use a product that keeps your chain in place given the parcours that riders race. Cons: No fitting instructions; can't be adjusted for height against the chainring; only compatible with braze-on front mechs The Token Chain Drop Catcher is an inexpensive tool that eliminates the problem of crunching your chain expensively into the bike frame. It comes in four colours, doesn't cost much, and works.

The idea is when your chain is bouncing around there is less chance for it to come off altogether and do some serious damage to your frame. It provides peace of mind. This particular example from K-Edge is well made and above all, easy to fit. The braze-on model has been designed to look good, work well but with minimal installation.In use the Token worked faultlessly. My chainset is inclined to drop the chain once every hundred shifts or so, usually when I've done something clumsy. I road-tested it in some very demanding terrain, including both directions over the Bealach na Ba in northwest Scotland, and had no trouble. Verdict

In contrast, 52 to 36 is a drop, less brutal, but you do so many more RPM that it wears faster by sheer ratio of time spent in it.... No problem. Each shift onto each larger cassette cog on the rear wheel makes the pedaling a little easier. To get the easiest pedaling gear, the lowest one, shift all the way to the top/largest cog. I have 58-cm Venge Pro with a Quarq DFour91 power meter (Dura-Ace 9100 52/36T chainrings). I do experience chain drop on the inside occasionally when shifting to the small ring. When that happens, the chain falls into the gap between the frame and the small ring. I added a chain catcher to the FD hoping to prevent the chain from dropping inside but all that chain catcher did was to make it harder for me to pull the chain out of the gap after a dropped chain. It has been modified to work with all well known groupsets with the exclusion of the electronic Campagnolo EPS. Chain reaction Cycles and CRC are trading names of Wiggle Ltd (In Administration) registered in the United Kingdom at 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN,A bent chainring can throw chains. It’s easier to see a bend in a ring after lifting off the chain. Just turn the crank by hand slowly as you look down at the ring from above. If it’s wobbly enough to throw the chain every now and then, you’ll be able to see it. It takes a little care, but it’s not that hard to straighten bent rings. It can be done with an adjustable wrench with the jaws set to just slip over the ring. You can then hold the handle and gently pull/push on the ring at the wobble to get it straight again. If you start gently and work little by little never trying to bend it too far at one time, you should be able to straighten it enough that the chain stays on. Call Shimano, once they soothe their paranoia that you are not a journalist, they will tell you that parts have a very finite lifecycle, riding style, cleanliness etc all affecting longevity... Our chain catcher has a conical tapered head, providing an excellent fit to braze on mounts that are integrated with frame. However with older frames you may use a clamp braze-on adapter. In such case please ensure that your adapter has a front face also conical (not flat).