32mm CX Tyres on 622 x 14 Rims?
Weeman1973
Posts: 471
I have recently bought a Gary Fisher Triton Single Speed bike for messing about on, leaving down the pub and generally going places I wouldn't take my Pinarello or can't be bothered getting all geared up etc. Have to say I am loving the simplicity of a single speed bike and just getting out & riding at a leisurely pace!
That said, I want to go on dirt tracks, country lanes etc. with my boy on his bike (he's 6 and got a little Apollo thing from Halfords which he loves!) so wont be going far or fast. It is fitted with Alex Rims AT450 wheels which are 622 x 14. I have my 25mm Gatotskins on there currently but am finding the whole set up a bit bone shaking when going anywhere except tarmac roads so was thinking of adding some CX tyres (or urban / commuter tyres) in 32mm width, lowering the psi to have a more comfortable ride over the rough stuff.
My question is will it be safe to add 32mm wide tyres on these rims without them blowing off? There is plenty of clearance on the bike to add wider tyres so this isn't an issue. I know Sheldon Brown suggests a maximum of 25mm wide tyres on 14mm rims, however the Kona Jake used to be fitted with these exact rims and had 35mm wide tyres as standard?
As I said, I don't anticipate riding far or fast on it so am I worrying over nothing and should just fit whichever tyres I want on there? What recommendations would you have tyre wise for my situation? Want something that is comfortable over the rough stuff, long wearing & puncture resistant. Not too worried about rolling resistance obviously but will be using it on the road too.
That said, I want to go on dirt tracks, country lanes etc. with my boy on his bike (he's 6 and got a little Apollo thing from Halfords which he loves!) so wont be going far or fast. It is fitted with Alex Rims AT450 wheels which are 622 x 14. I have my 25mm Gatotskins on there currently but am finding the whole set up a bit bone shaking when going anywhere except tarmac roads so was thinking of adding some CX tyres (or urban / commuter tyres) in 32mm width, lowering the psi to have a more comfortable ride over the rough stuff.
My question is will it be safe to add 32mm wide tyres on these rims without them blowing off? There is plenty of clearance on the bike to add wider tyres so this isn't an issue. I know Sheldon Brown suggests a maximum of 25mm wide tyres on 14mm rims, however the Kona Jake used to be fitted with these exact rims and had 35mm wide tyres as standard?
As I said, I don't anticipate riding far or fast on it so am I worrying over nothing and should just fit whichever tyres I want on there? What recommendations would you have tyre wise for my situation? Want something that is comfortable over the rough stuff, long wearing & puncture resistant. Not too worried about rolling resistance obviously but will be using it on the road too.
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Comments
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I like Schwalbe Marathon as my general purpose tyre. The data sheet has rim width limits.
I use 28mm for roads, tracks and trails unladed and 32mm on my touring bike for similar terrain fully loaded.
What clearance do your brakes give?
CX tyres tend to be quite soft and wear out rapidly.0 -
MichaelW wrote:I like Schwalbe Marathon as my general purpose tyre. The data sheet has rim width limits.
I use 28mm for roads, tracks and trails unladed and 32mm on my touring bike for similar terrain fully loaded.
What clearance do your brakes give?
CX tyres tend to be quite soft and wear out rapidly.
Cheers - I thought CX tyres wouldn't be any good. Was looking at the Schwalbe Marathons but then seen the Delta Cruisers (32mm) on a deal for £8 each so will probably try them (Gum wall too for a it of Retro!).
Here are some images showing clearance etc:
Front Caliper:
Rear Caliper:
Rear Stay:
Bike
:
The images show my 25mm gatorskins which seem to have loads left to play with so hoping 32mm shouldn't be a problem. I can easily get a 6mm Allen key either side of the rear tyre without it touching the stay so thinking a 32mm tyres is 7mm wider than what is on currently so 3.5mm either side extra shouldn't cause an issue.0 -
It's not a rim question, it's a tyre clearance question.
Go as big as you can but there's a point you'll go too big and then you're stuck - literally.
Measure your width carefully - only you can do that.When a cyclist has a disagreement with a car; it's not who's right, it's who's left.0 -
FransJacques wrote:It's not a rim question, it's a tyre clearance question.
Go as big as you can but there's a point you'll go too big and then you're stuck - literally.
Measure your width carefully - only you can do that.
Got some 32mm Conti Touring plus at the weekend which have gone on with room to spare0
