OK, here a completely noob question i'm sure, but hey i'm trying.
My current ride is sporting 700cx40c tires. I ride primarily(99%) on pavement/sidewalk/road. I have become immursed by cycling, riding several times a week, with pedals reaching the 35 mile range in one day. It seems that these tires are ill suited for the biking I want to do, as they are fairly treaded, and seem to produce some resistance (noise etc.) Here is my query.......
My rims are Weinmann Zac 19's. They read 700C x 28C/38C.................622x 19. I would like to go to a smaller size slick. What size tire will go with this rim? I will be going to the LBS for the work, but would like to sound educated and have ideas prior to going. I have searched the other threads, but cannot put my finger on the info I need. I have read Sheldon Browns info, but others have said his chart is a bit overkill, on the safe side.
I am looking for a good tire for speed, more of a "road" feel if you will...........
Seems to me that the wheels are telling you that they're for 28mm to 38mm tires. Sheldon's site says your size rims (622 x 19) are for 28mm to 44mm tires. Do you want to go to smaller section tires than 28mm?
I had the idea that Iwanted to go 28mm. But when I saw the rim said 700C x 28c, I figured that meant the rim was 28mm. I suppose my real question is this. Given the information I provided, can I go with a 28mm tire? If not, can I go 32mm?
The bike came equipped with 40's, the "splay" out a bit, and I feel slow me down considerably for my city riding/commuting.
Someone confirm if I am a complete idiot, sfter reviewing Sheldon's chart it seems that my rims will support 28-44's. I was looking for 28 on the cart, from the 700C x 28C.
I had the idea that I wanted to go 28mm. But when I saw the rim said 700C x 28c, I figured that meant the rim was 28mm. I suppose my real question is this. Given the information I provided, can I go with a 28mm tire? If not, can I go 32mm?
According to the information in your post, the rim size is 622mm x 19mm, and they're intended for 700 x 28 through 700 x 38 tires.
My understanding is that the non-aerodynamic portion of the tires' drag is not really a function of tire width, though...that it's more dependent on pressure and tread design and tire material and construction than on width.
I swapped out 700X35's with some cheap 700X28 Michelin Dynamics. It makes a heck of a difference. You will be doing 50 mile rides on those in no time. You will probably have to swap out your tubes and get some 700X28/32's.
86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
Sheldon said his chart was conservative, so you could probably go to 25's if desired.
Whatever you pick, you should notice an immediate improvement in acceleration and rolling resistance. Keep them pumped to the max. Expect to have to top off the air pressure more frequently too.
In my experience, Sheldon's chart (and the rim makers' recommendations) are VERY conservative. I've run tires from 23mm to 41mm on both my road bikes (Atlantis and Rambouillet) with no trouble at all. I'm sure you'll be fine with 28s or even 25s.
As for tubes, I've bought only two sizes for at least 10 years: 700x25 for all the family's road bikes and 26x1.5 for all the mountain bikes, using tires from 2.3 inch knobbies down to 1.4 slicks. Everything fits, everything works, no problems.
Basically, there are small, medium, and large tires. Small tires run around a couple hundred grams. Medium tires are 300 and up.. Large tires 400 gr and up.
Yes, you can use a medium tire. 32c is a great compromise between this and that.
I am using Panaracer Pasela TG folding tires. They may weigh half what your current tires weigh. They are quite lively for their size.
Btw, I was using 28c Marathon Racers last year and decided to jump up to 32c for the better ride quality.