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Plz help with tire/ whl selection...

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Plz help with tire/ whl selection...


Old 12-11-04, 10:46 AM
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Plz help with tire/ whl selection...

I'll try to keep this simple...

Last winter I sold my Specialized Stumpjumper and got a Specialized Sirrus (I'm 36 years old and weigh about 240lbs). I mostly ride dirt paths and roads, the Sirrus has super skinny "Turbo 700X23c" tires. They are wayyy to harsh, I miss the fat 26X1.95's on the Stumpjumper. I'd like to get tires that are about twice as fat as the 23c's, which would be about 2/3 the fatness of the 1.95's.

The dilema...

Should I try 'Hutchinson Globetrotter Cross Tire (700X37)' with my existing skinny rims, how fat would they where the tire hits the pavement?

The Sirrus is a 29er (700 wheel size) and I've found these rims at bike Nashbar: 'Mavic A719 Silver/Shimano XT M756 Disc Silver Wheelset', would I be advised to go with these new 29er rims and get "real" MTB style tires?

Who on the net is a good source for prebuilt wheels and tires?

Any tire/ rim recommendations would be appreciated. Please excuse me for posting on multiple boards, bacause this issue seems to touch on road, MTB and commuting,


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Old 12-12-04, 06:04 AM
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The term 29" is a bit of nonsense. It is a 700c bike and can take any 700c width compatible with the rim width and frame clearance. My commuter bike usually runs 28mm and my tour bike usees 32mm.
I find that 32mm works on trails but I am pretty light and agile on the bike.
Armadillos have agood rep for toughness and puncture resistance.
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Old 12-12-04, 08:13 AM
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240 lbs is pretty heavy for most rims-- I can destroy many prebuilt wheels at 200 lbs.

Don't toss a bunch of good money after bad-- get a set of hand built wheels using Sun rims (CR-18 or even rino-lytes) and good double butted spokes. It will cost you $200-300 but it's really worth it after you figure in the cost per mile.
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Old 12-13-04, 08:00 AM
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first off, if there is nothing wrong with your exisiting wheels why not ride those to death first???

i am 220 and my commute takes me through a few miles of dirt road a day and normal wheels hold up just fine!

if your gonna ride a mix of road/trail i'd suggest getting a tire that can do both (pretty) well maybe a 700x28c (or a little wider) touring tire... i am currently in love with the continental top-tourers but my commute never gets rougher than a bumpy washed out dirt road.

if you want tough wheels, most anything with 36 spokes will be really bomb proof if built properly (hell i'd say a well built set of 32 spoke wheels might be all you need unless your really riding some real mtb-stlye trails).

lastly make sure to check the clearances on your stays as your road bike may ont be able to fit superwide tires (my roadie will only go up to about a 28).
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Old 12-13-04, 08:32 AM
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I'm a pretty big guy too, and I am hard on rims and tires. 23C is really small. I'd try to a bigger tire on those wheels first. Look for something around 32c or larger. It won't be as quick, but it should be a little more comfortable. As you go bigger, you can run lower tire pressure which will be much more supple. As for wheels, I'd say your front should be fine, but the rear may cause you trouble in the future. Toast it first, then replace it with something handbuilt and stronger. I like to use old 7 speed hubs, then run 8 of the 9 cogs on the back (I just drop the smallest one). This reduces wheel dish, and I can run very light 32 hole wheels with no durability issues. I recently built a MTB wheel like this, after folding 2 9speed wheels in one season. It has not gone out of true once, even when I really abuse it.
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