Welshboy

If so, what one? I'm interested in something small enough to fit in a jersey pocket that will work on 10-speed and 11-speed chains (both with a master link). I have workshop quality chain tools at home but would like a quality chain tool for day rides and general riding. Thanks in advance.

aplcr0331

I've never carried a chain tool on my rides. Are you experiencing problems with your chain coming undone or breaking?

I'm guessing there's a nifty Park Tool that will fit in a bag if needed.

I'd check Wiggle, I'm guessing they might have some good ones at a decent price.

Milton Keynes

I do carry one on one of my bikes, just in case I break a chain. Never had to use it, though. I don't remember what brand it is.

freeranger

I do. Not digging it out from the bottom of my bag, but it's a small Park one. Haven't used it for at least 17 years. But it did get used occasionally when I rode mostly mtn.bike trails-usually on someone else's bike (guess I kept my chain in better shape or just had better luck?). A chain tool and quick link can come in handy, if you're unlucky enough to have a chain break.

wolfchild

I ride fixed gear and singlespeed bikes so I don't really worry too much about busting up a chain...But I still carry a small chain tool plus a few chain links because I like to be prepared for anything.

flangehead

I carry multi tools that have chain tools plus quick links. Saved me twice in commuting context.

Rolla

If a chain tool is on my multi-tool, then yes, I do. I've seen other people break a chain on a ride (mountain bikes), but I haven't yet.

Welshboy

Not really - three times in the last 30 years but one of those was because I'd incorrectly re-joined a Campag chain. I'm often out riding when my wife is at work so I can't call her to pick me up if the worst should happen. I'd just like to be self-sufficient and not relying on a multi-tool based chain tool. I carry an old 9-speed chain tool (stored in one of those bottle cage storage cases) on my commuter bike but would like something to tuck into a jersey pocket when out on my roadbike.

70sSanO

I carry a compact Park tool CT-5 in my mtb bag along with a quick link. I don’t carry one with me on my road bike.

Park makes a folding chain tool CT-6.3, but I have not used it.

John

Steve B.

The Topeak Alien I have on all my bikes has one.

Koyote

I have one in my multi-tool, though I have not yet ever needed it and hope to never need it. Still, I never go on a ride without it.

veloz

Park IB-3 multi tool with chain breaker on remote rides or multi-day tours. In 45+ years of cycling, I’ve used a chain tool 3x on rides but never on my own bike. Little need to carry but adds assurance sometimes.

sw20

I've got Topeak Ratchet Rocket which has one, but only ever carried the ratchet until a friends chain snapped mid ride! Now I carry the whole thing!

shelbyfv

I carry Crank Bros multi tools that include a chain tool. Kind of heavy, there may be newer and lighter choices. Also spare quick links in 10 and 11. I've never broken a chain but I've used both the tool and links to get others back on the road.

BCDrums

Riding a multispeed derailler bike since 1974, including a cross-country ride, I have never needed a chain tool. Some qualifiers:

—I ride on the road, not off-road
—I weigh less than 160lbs.
—I am a spinner, not a masher
—I have long ago switched to quick-connect links, and away from re-pinning.
—I don't carry tools to fix others' bikes (but I help if I can!)

If I were a heavy masher riding off-road on a re-pinned chain, I might think differently. I read lots of reports here of riders who bust a chain. So consider your circumstances before you add one more tool to your kit.

Iride01 

No.

KJ43

I carry a multi tool with a chain breaker and a couple spare quick links. It's been a long time since I've had to do a chain fix on the road, but better to be prepared.

Troul 

i carried a jaw breaker for the times I would have the little guy rolling along. Helped keep them paying attention while riding! As long as I keep up on the maintenance, I forfeit that tool from the buttocks tool bag.

indyfabz

No. Not even when I tour.

kahn

The one time I used one, I did not have one. Borrowed from a cross-country cyclist who happened to pass us on the North Cascades highway. At the end of the process it looked as if I had on elbow length black opera gloves - what a mess.

rosefarts

When I did the White Rim I took one. Just seemed like a long way from help. I’ll have one this weekend on a wilderness ride for the same reason.

I have one made by Specialized that goes into my steerer tube.

Joe Bikerider

One of my “rules” is to carry along any tool that I used on my most recent repair or adjustment. After a couple rides then I can put that tool away. My chain tool has been put away now for many years. But I know where it is, just checked. I think my rule is a combination of witchcraft and insecurity. For example I just put away my hex key that I had used to adjust my new seat. Never needed it after that first day but it is light and it felt good to have it in my pocket. After a few weeks I put it away. The most important thing is to get out and ride.

zandoval 

I carry a small Park chain tool with two extra links. I do short solo back road rides mostly torn up asphalt and loose small gravel. I carry tools and a few spare parts just in case I get stuck. A chain break tool is about as fancy as I carry.

spelger

no. and i never wished i had.

drlogik 

I carried a chain tool for many years but after about 20 years I looked back and never had any problems so I stopped carrying a chain tool. That was 20 years ago. I do keep a close eye on my chains and probably replace them too early. Chains are cheap in the scheme of things.