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Commuting Bicycle commuting is easier than you think, before you know it, you'll be hooked. Learn the tips, hints, equipment, safety requirements for safely riding your bike to work.

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Old 09-20-06, 01:05 PM   #26
CaptainKurt99
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3k miles of commuting this year and not one flat on 700x23 conti gatorskins
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Old 09-20-06, 01:16 PM   #27
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There is absolutely no pattern to my flats. Sometimes I'd go for several years of cycling every day without a flat and sometimes I'll get three in four days. My last one was about a month ago, before that - no flats for over a couple of years.
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Old 09-20-06, 01:20 PM   #28
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I've gotten goathead thorns that went through the center part of my kevlar belted tires! (No flat because the tubes have slime in them as well!)

The bike I'm on right now has 30 yr old tires on it, and no slime, I've had one flat in the past week... pulled a 3/4" staple out of the tube. (It was almost entirely INSIDE the tube... one hole, and only about 1/8" was sticking out when I saw it)

Other than that the only flat I've had was when the valve stem blew off my front tire... the tube was on the bike when I bought it, and I put 2000 miles on it before that happened, so I can't complain too much... no idea how old the tube was or how many miles were on it.
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Old 09-20-06, 04:52 PM   #29
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I used to get one flat about every two weeks. Then I installed tuffy strips in my 700C-38's and made sure they were always have at least 60lb of pressure. Now I rarely get a flat, I've probaby had teo in about 3000k.

Of course now I'll go back to my bike and both tires will be flat.
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Old 09-20-06, 08:14 PM   #30
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I bought a new bike at the end of July, and got the first flat in only 2 weeks. I had a 1 cm slice in the front tire. I was pissed. I decided those tires (nylon) were not worth it to replace with the same thing. So I went out and bought a pair of Continental Ultra Gatorskins. Gotta love that kevlar.
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Old 09-20-06, 08:49 PM   #31
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Quote:
Originally Posted by sauerwald
No flats in the past 2 years.
Bike 1 (commuter), about 3000 miles, Schwalbe Marathon Pro - kept at 80-90 psi.
Bike 2 (fun ride), about 800 miles, Vredestein Fortezza 700C-23 - kept at 120psi
Vredestein Fortezza SE are incredible tires. Performance had a sale two weeks ago $18 plus another 20% when you bought two!
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Old 09-21-06, 01:46 AM   #32
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1200km so far and no flats. I just make sure that my 700Cx28 tires are rock hard everytime.
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Old 09-21-06, 06:31 AM   #33
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I don't have many flats. Disregarding the time when I did something stupid when building a new wheel and got 5 flats the next day, I've only had 5 flats in 7800 miles. On my original stock cruddy Kenda tires, a T50 staple, a sliver of glass, a sliver of wire from a blown tire, and then the tire wore through and the tube bulged out and wore through. Replaced with Bontrager Race Lite 32s, and had one flat so far, a nasty looking cm long curly, barbed metal shaving.
There just isn't that much debris on the roads around here, I think in other areas the same tires would have had far more flats.
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Old 09-21-06, 07:30 AM   #34
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I seem to have to replace an inner tube about once a year at most. *knocks on wood*

Actually, most flats I've had where avoidable - usually caused by the valve stem getting sliced by the rim because I'm too impatient with the hand pump and don't secure it properly.
I popped a tube once hitting a curb with my old MTB, dented the rim something fierce as well, and got two punctures on my old road bike (27" x 1 1/4) because I was riding it on tires that where literally decades old... A rock got in a crack in the tire and pierced the tube - a few days apart, on 80km rides. After those, I carry a spare tube with necessary tools and a pump nowadays - and I always replace my tires ASAP when they need it.

So, if I wasn't lazy/careless/insane I'd have next to no flats, it seems. I usually use whatever tubes I can get cheap - CCM or Raleigh from the local Canadian Tire generally. The tires I usually use are also from Canadian Tire - cheap gumwall Kendas. They may not be sexy or last more than a season, but they do the job just fine.
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Old 09-21-06, 07:37 AM   #35
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I don't think I've ever gotten a flat out on a joyride, but get about 1 every two months or so from commuting around town. Glass and Boston potholes will flat just about any tire around here. I'm utterly amazed that my rims are still true after the last hole I smacked and flatted from, a 5-inch deep maw next to a manhole that my front wheel thankfully went over but my rear with a rack full of groceries didn't escape. Sigh- I virtually never got flats in Texas unless I ripped off the valve stem.
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Old 09-21-06, 07:40 AM   #36
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1 flat in about 6000km. Drove over a 3" nail that i retreived from INSIDE the tube.

What's a pinch flat?
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Old 09-21-06, 08:00 AM   #37
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Quote:
Originally Posted by ekimeno
On average, how often do you get a flat?
For the last nine years on my commuting bike (5000 miles/yr) approx one slow leak/year that flats while parked at home or work. Zero flats that had to be repaired while enroute in about 45,000 miles of bike commuting on 622 x47 mm Schwalbe (Not Plus) Marathons.
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Old 09-21-06, 08:27 AM   #38
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From Jan to Aug with 5460 miles I have had 24 flats. That comes out to a flat every 227.4 miles per flat.

I run the Michelin DYNAMIC 700 x 23c. When they are new I had no flats. But after 300 to 350 miles you start geting flats. The tires are rated for 2200 miles. But I ride them hard and the roads around here are not that great.
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Old 09-21-06, 01:13 PM   #39
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Almost never. I just had a flat this weekend doing a 159 mile two day ride. Had two small pieces of glass that worked their way through to the tube. But, frankly I cannot remember the last flat I had before that. Years and years. But I don't do the kind of mileage others do.

I have Vredstein Sslicks on my MTB that have never flatted, and I have Contis 700x23 on my road bike. There is glass all over the place where I ride. I am very careful, but I know I hit glass at least once on my rides. There just is no avoiding it. I have no idea what tubes I have...never have to look at them.
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Old 09-21-06, 01:16 PM   #40
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Quote:
What's a pinch flat?
When you don't have enough pressure in your tires and you hit something with a sharp edge like a pot hole or expansion joint in a bridge, or train tracks and pinch! whammo!...you flat.
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Old 09-21-06, 01:21 PM   #41
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I do not talk about such things.........
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Old 09-21-06, 01:52 PM   #42
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As it happens I had a flat last night...2" screw buried all the way. Luckily I had a screw driver. Slime tubes don't help much in this type of situation.
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Old 09-21-06, 02:53 PM   #43
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About once per season.

The one I had this year was a bit of a mystery, but the tube was old and I didn't bother to question it. Could have been a cat.

Of course, now that I've written and posted that, I'm doomed.
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Old 09-21-06, 07:59 PM   #44
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Semiannually.
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Old 09-22-06, 05:45 AM   #45
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I knew I shouldn't have started this thread!

Pinch flat this morning in the rain on my way to work...

Good news is that I changed the tube in record time - took about 4 minutes.
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Old 09-22-06, 07:45 AM   #46
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...and I knew I shouldn't have posted this last night. Flat on the way in this morning.

Glass half-full comment: it happened right in front of a gas station and they gave me change (gotta pay 50 cents) for the air pump without any hassle.

The rookie lesson of the day was that I heard once-per-rear-wheel-revolution clicking about 3 miles earlier and I stopped to check out the hub, brakes, spokes, cassette, but did not look at the tire. I think the clicking was a piece of glass slicing its way through the tire. These are Bontrager Race Lite Hardcases and looking at the tread carefully during the change they're a bit ripped up after 1000 mi.
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Old 09-22-06, 07:57 AM   #47
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I don't get flats. Never. Schwalbe Marathon +. 'nuff said.
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Old 09-22-06, 07:58 AM   #48
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March 2006 - August 2006 0 flats
September 2006 5 flats

At least I know I'm still proficient at changing flats!!!
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Old 09-22-06, 08:25 AM   #49
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I never got flats until I bragged it up on Bike Forums. Since then I've had two. Beware!
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Old 09-22-06, 05:35 PM   #50
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Quote:
Originally Posted by noisebeam
Where do you live in phx where you find thorns or cacti on the road, or do you mean mtb? I've never had a flat from a plant object ever, the few I've had have been tiny bits of wire or tiny bit of glass.
Al
I commute from N.Phx to Scottsdale everyday. Most of this is through PV...lots of side streets. Down 32nd st, over on mt view until 54st, 54st south. On the weekends, I usually ride up to Carefree or Anthem. With the recent rains, there's tons of stuff in the road.

I was riding a 25cm tire in the back that I switched out to a standard 23cm. It seems to help run a higher psi and less pinch flats. So it has helped.
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