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can wider tires fit on this bike?

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can wider tires fit on this bike?

Old 01-22-17, 11:10 AM
  #1  
rumrunn6
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can wider tires fit on this bike?

can wider tires fit on this bike? these taiwan 700x40c tires measure 1.5" wide. if so, can you recommend one? preferably a file thread tire for unpaved rail trails. the bike is an old 1992 swchinn crisscross made in china. it's a $50 bike w $10 fenders & old rack from the basement, I got nuthin' in this bike
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small tires 1 P1080367.jpg (92.6 KB, 246 views)
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small tires 2 P1080360.jpg (96.2 KB, 245 views)
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small tires 3 P1080357.jpg (93.2 KB, 245 views)
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Last edited by rumrunn6; 01-22-17 at 07:12 PM.
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Old 01-22-17, 11:13 AM
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Yes, but your fender clearance will decrease.
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Old 01-22-17, 11:32 AM
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Originally Posted by Darth_Firebolt View Post
Yes, but your fender clearance will decrease.
I can flip the fender brackets around
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Old 01-22-17, 11:35 AM
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Originally Posted by Darth_Firebolt View Post
Yes, but your fender clearance will decrease.
Presuming the tires won't ride the chainstays...which 40mm is pushing basically all CX bike clearance.


Otherwise 650B might be in order.
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Old 01-22-17, 11:40 AM
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Originally Posted by Marcus_Ti View Post
Presuming the tires won't ride the chainstays
plenty of room back there too
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Old 01-22-17, 11:43 AM
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1.5" wide in a bike like that is already pretty wide, 42 is about the limit, live with it.

until you buy a 29er frame /fork/bike..



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Old 01-22-17, 11:48 AM
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If you don't need the knobbies, you can run a tire with less tread and a larger casing for a plusher ride, and still keep clearance.
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Old 01-22-17, 11:51 AM
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Macro shot, it's a thicker thread look but not so deep in reality.

I doubt a 622-50 will fit, but throw the dice and give it a shot.
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Old 01-22-17, 12:10 PM
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Originally Posted by fietsbob View Post
until you buy a 29er frame /fork/bike
supposedly a 29er tire would fit if I could find a narrow one, would still be wider than the current tires
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Old 01-22-17, 12:23 PM
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Originally Posted by rumrunn6 View Post
supposedly a 29er tire would fit if I could find a narrow one, would still be wider than the current tires
Slant Six 2.1 would probably fit, as they reportedly run about 1.8" actual.

Thing is you need to find one you could try on. Some shops have piles of removed tires.
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Old 01-23-17, 02:58 PM
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hey how about a 700x55 "cruiser" tire?
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Old 01-23-17, 03:10 PM
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Try it and report back.
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Old 01-23-17, 03:30 PM
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Originally Posted by rumrunn6 View Post
hey how about a 700x55 "cruiser" tire?
Almost certainly not, if it's actually 55mm wide.

And if it does, I hope you're both attentive and handy with a spoke wrench.
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Old 01-23-17, 03:52 PM
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Originally Posted by wschruba View Post
spoke wrench
I'll bite, why a spoke wrench?
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Old 01-23-17, 03:56 PM
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Logically, because with so minutely-tiny a clearance,

the slightest excursion out of perfectly true and it will rub tire on the frame/fork,

if it fits at all ..




...
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Old 01-23-17, 04:01 PM
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Originally Posted by rumrunn6 View Post
I'll bite, why a spoke wrench?
Originally Posted by fietsbob View Post
Logically, because with so minutely-tiny a clearance,

the slightest excursion out of perfectly true and it will rub tire on the frame/fork,

if it fits at all ..




...

Bob nailed it. I've done the "practically-zero-clearance" thing before, but only on bikes that are used on road, in good conditions. Eventually it gets old, though, messing around to keep it running perfectly straight.

Oh, by the way, bear in mind that most tire casings are *not* perfectly true, so to make it fit, you may need to intentionally make the rim out of true. Not worth the headache, in my opinion...keep at least 3-4mm clearance on either side of the tire--even then, that's on the real tight side of things.

To add to the discourse here a little bit, there are slightly wider 700c tires available--Compass Snoqualmie Pass (44), Panaracer Fire Cross (45), and Contental CrossRide/SpeedRide (ostensibly 42, but really more like 40) immediately come to mind, and look like they might fit your frame, but I would also pose a question to you: is a few more millimeters worth spending $90-120 to you?

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Old 01-23-17, 05:51 PM
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photo 1 looks like your missing a spoke on the front wheel.
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Old 01-23-17, 06:49 PM
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Originally Posted by fietsbob View Post
with so minutely-tiny a clearance, the slightest excursion out of perfectly true and it will rub tire on the frame/fork, if it fits at all
oh right of course
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Old 01-23-17, 06:52 PM
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Originally Posted by wschruba View Post
is a few more millimeters worth spending $90-120 to you?
no not at that price. but these tires are wicked old & the tread isn't what I want. so If I'm gonna change them might as well get some flotation w a shallower tread & added width. thanks for those suggestions
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Old 01-23-17, 07:01 PM
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how about treads like these but a little wider


Kenda Happy Medium DTC 700 x 40c


Clement X'Plor MSO Tire - Clincher 700x40


Panaracer Gravel King SK Folding Tire 700x40


Continental Top Contact Winter Reflex Bike Tire 700x42

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Old 01-23-17, 07:02 PM
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Originally Posted by zebede View Post
photo 1 looks like your missing a spoke on the front wheel.
that's just a spot of dirt, it's not in line w the other nipples. plus I just counted all 36

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Old 01-23-17, 10:51 PM
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You guys are throwing some good tires choices. Here's one I got in a trade and really like it. Comes in 32, 35, 37.
WTB All Terrain.

https://www.blueskycycling.com/produ...vAixoCcjHw_wcB
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Old 01-24-17, 12:50 AM
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Add Continental Speed Rides to the tires rumrunn6 suggested. Excellent all rounder 700x42 tires (nominal, actually closer to 38 wide) for pavement and modest trails. I run 'em soft for rough roads, around 50 psi, and up to 60-65 psi for better pavement. Very easy on my damaged neck and back with my rigid fork mountain bike. I tried three sets of most-terrain tires before settling on the Conti Speed Rides and plan to wear 'em out and get 'em again.

I thought about trying wider tires too for a cushy ride. No problem with the frame, but the front derailer cable clamp bolt would rub with anything wider. Only way I could run wider tires with this mountain bike is to convert it to a double chain ring or possibly a single.

Unfortunately the 700x42 tires are too wide for the SKS fenders that came with the bike, but I may get some quick attach/detach splash guards for this bike and save the SKS fenders for a more general purpose bike.

Another reason I probably won't add regular fenders to the mountain bike is a few times riding off road I've snagged some debris -- small fallen tree limbs, large bits of dried brush with tough stems -- that might have tangled a fender and tossed me overboard.
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Old 01-24-17, 08:02 AM
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Originally Posted by sunburst View Post
You guys are throwing some good tires choices. Here's one I got in a trade and really like it. Comes in 32, 35, 37.
WTB All Terrain.

https://www.blueskycycling.com/produ...vAixoCcjHw_wcB
That is downright cheap for WTB tires!!
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Old 01-24-17, 10:11 AM
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Originally Posted by rumrunn6 View Post
how about treads like these but a little wider

Panaracer Gravel King SK Folding Tire 700x40
FYI, that size of Gravel King SK measures a bit WIDER than nominal. They measured 42.5 mm wide on my girlfriend's cross bike, which has pretty standard 19 mm wide rims.

They're a great tire, wide, fast, and decent grip.
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