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Invisibl 03-24-08 05:37 AM

Mountain Bike/Hybrid bike slicks
Hey everyone...I've been checking out the forum for about a week now...and this is by far the most informative and helpful bike community I have discovered thus far ;). I've noticed a few threads inquiring into the same issues as I might be mentioning...but, I hope my question is unique. I have two bikes that myself and my g/f use for commuting currently (both currently have mtb tread tires), and I was hoping to swap the current mountain bike tread tires for a tire of less tread, or treadless (slicks) tires. I measured my rim width (sheldon brown website) for the mountain bike, and it appeared to be 1 inch (25.4 mm) wide. The hybrid bike's rim width appeared to be between 0.93 (23.8 mm) of an inch and 1 (25.4 mm) inch. I was hoping to get some feedback as to the accuracy of my measurements, these numbers seem right...when comparing to other mountain bike and hybrid bike rims widths you either own, or have seen? Based upon Sheldon Brown's figures, it seems that the narrowest width tire I can fit SAFELY on the MTB is 1.73 inches; about 1.50 inches on the hybrid bike rim. Again...does this seem accurate based upon your own experiences of fitting tires of these sizes to your rims of possible comparable sizes? I apologize for the length of the message...I'm hoping to purchase the tires online today - the reason for my thoroughness. Thank you everyone!

dynaryder 03-24-08 12:11 PM

What bikes,and what are the current tires? I'm guessing the MTB has 26" wheels,is the hybrid 26" or 700cc? Unless the MTB is a higher end model with wide rims(are you measuring the inner bead or outer edge of the rim?) you shouldn't have any probs mounting 1.5" slicks. The hybrid shouldn't have any prob going down to 26x1.5"/700x25 depending on the wheel size.

Invisibl 03-25-08 12:27 AM

Well, the mountain bike is a...middle to late 1990's has 26" wheels. I BELIEVE the Hybrid (early 2000's Mongoose) has 700cc wheels...due to a similiar model using 700 cc factory tires. I measured both bikes' rims, from edge to edge...outer edge, I believe. So...the measurments I listed for the rim thicknesses are from outer rim edge to edge. I'll get back to you in a bit with a confirmation for the tire sizes and the rim make and model for the Mongoose. Thanks for your help! :)

mstrpete 03-25-08 01:44 AM

There may be a marker on the rim itself, "26x1.5" or something like that. I rode a Huffy MTB for a while and I had no problem mounting 1.5" street tires on it. One of my better decisions with that bike, since I rarely leave the pavement for very long.

Invisibl 03-25-08 02:02 AM

Okay...just measured...the hybrid tires have 26"x1.95 (not 700c) written on them, manufactured by Kenda. The mountain bike tires are the same size as well. So that means that I can safely fit 1.5" slick tires on both bikes?

Invisibl 03-25-08 02:05 AM

Thanks for the response mstrpete :). There was unfortunately no marker on the rim for the hybrid or the mtb, but I believe I have enough information by measuring the rim widths manually, and noticing the tire widths (26x1.95) to decide on the new tires. Thanks guys

Invisibl 03-25-08 02:22 AM

Btw...I was looking at Nashbar and Performance you think it might by possible to go as narrow as 26x1.25 for the tires, if 1.5 is possible? Thanks

obie 03-25-08 10:25 PM

I put some 26 x 1.25's on a cheapo (Columbia) MTB I bought last week at Performance. Since this will become my new beach cruiser, I thought the slicks would give me a smoother, faster ride down the beach path. So far, so good.

Bill Kapaun 03-25-08 11:02 PM

The 1.25" tiresa will require you to be much fussier about keeping the pressure topped off to avoid pinch flats.
They will transfer more "road buzz" than a larger tire.
I use 1.5" myself. Since I'm 235 lbs, I like the little extra "squish" factor. I keep the pressure about 5 psi over max and don't feel I lose that much over a skinnier tire. I'd ridden some 27x 1-1/4 tires on an old 10 speed and found them too harsh. The "buzz" would numb my hands in a couple blocks, on rough textured pavement..

iamlucky13 03-25-08 11:56 PM

I'm unaware of any reason you can't use almost any set of 26" slicks on either bike, although if you're buying the tires from a bike shop rather than online, you might want to confirm that with an employee before purchasing. The different widths of the rims should be little enough not to matter.

BTW, I got a cheap set of 26x1.5's at Performance for something like $10 per tire on sale. They seem to be holding up pretty well.

Invisibl 03-26-08 08:00 AM

Thank you very much for the suggestions and advice everyone! :). You all were very helpful, I ordered the 26x1.5 slicks from performance bike yesterday...thanks for taking the time to post :). Btw, if anyone is looking for a discount at performance bike for tires...they have a 20% all tires sale until 3/27/ code: 0041100000001164

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