When’s the last time you broke a chain?
 

I’ve always carried a chain tool. I’m not sure why, since I’ve never broken a chain. Ever. Maybe it’s the Boy Scout motto that’s been ringing through my head since childhood.

Other than on multi-day epic rides, anyone carry a chain tool?

On my road bike, I’ve whittled down to a tube, lever, and 2 CO2. On my MTB, tube, lever, small tool (3-6mm hex, T25) and small Lezyne pump. Same on the gravel bike. Now I have like 3 Park Tool CT5’s and multi tools laying around!

Never had a broken chain but rode with a guy that had one break twice in just a couple of weeks.
I have a chain tool integrated with the multi tool I carry.

I’ve broken a chain on an MTB ride. And in fact, due to reinstallation error, I broke it again shortly afterwards on the trail! Good thing I had the tool. I just put it in an easy gear and limped out of the trails and called it a day after that - I didn’t trust the chain anymore :)

I always carry one on ‘real’ rides, just because...

Never broke one on the road. Never.

It's common with mtb's, though. Chains generally break because they were compromised by an earlier event, like chain suck, and chains take a beating on mtb's.

Never, however I've used my multitool several times to help others.

2008. I broke the guide point off on a shimano pin mid way through installing on chain I had removed to clean. Decided to remove the half pressed broken pin, and repress it in without the guide point because I was silly and impatient. It snapped rolling out of the driveway, at the botched pin, about 3 rides after my "repair". Could have been so much worse. Learned my lesson.

Never on my road bike.
 

Riding and racing for 40+ years. A couple of times on old MTBs. I never carry a chain tool on the road. I have one on a multitool that I keep in my MTB saddle bag.

On the road, I’m riding tubeless now, which are great. Since going tubeless, I carry two Tubolito tubes, two 16g CO2 cartridges, an inflater, a multitool, and a Dynaplug Bullet tubeless repair kit. I’ve not had a flat in the two years I’ve ridden tubeless, so the stuff is never used.

One of the Crossroads Classic crits (cannot remember which one) about 15 years ago.

Needless to say. Race over.

I have broken a chain twice. Once on my fatbike, which I had allowed to get rusty doing winter commuting. The quick link broke

The other time I think I just let it get too old. Didn't have a quick link, fixed it the old fashioned way with a multitool chain tool. The chain lasted 200 km and then I swapped everything out.

Multitools are heavy, but I think the chain tool is worth it. But I try to make sure to carry a quick link

Always on 'shake down' rides
 

Broken newly-installed chains several times in the last many years; certainly a testament to my mediocre wrenching. Once fixed I've never had a chain wear out and break before I could replace it. Carry a tool always, not heavy and don't want to be without it.

I think it was about 2001, but there may have been one incident since then. I generally have a chain tool and spare links with me so I can be useful for helping out someone else, which I've been able to do.

I've done tens of thousands of miles on the road and don't carry a chain tool but I once did break a chain on a climb at 5:45 AM. It threw me on the ground pretty hard. Nice way to start the day.

Personally haven’t broken a chain on a bike in 11 or 12 years, but saw a chain break on a group ride last summer. A quick link from another rider saved the guys ride, since then I’ve carried one in my seat pack at all times

I've only had one chain break. That was also due to an installation error using a Shimano pin on a new chain.

I broke a chain once, or rather bent the plates beyond use. Unfortunately, I also broke a rear derailleur (in half), and also bent the front derailleur. So at that point a chain tool would be of little use. Fellow PLer drmojo to the rescue! We were a short walk from his home, so I was able to borrow a bike to finish the ride.