Hello

i'm in need of huge help...
i have got this bike :

https://www.bikepedia.com/QuickBike/B...3#.Uf035WQY1EU


2010 Scott Sportster P3
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Rims Alex XC-44 disc, 32-hole
Tires 700 x 35c Schwable Smart Sam
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on such rim there is written 622-17
does it means that 622(700c) i can MOUNT any tire-tube STARTING from 17mm wide? and then what would be the MAXIMUM ?
the bike came with 700x35c Schwalbe Smart Sam, i am currently changing them with the new Marathon Deluxe and Marathon Supreme (both 700x35c)

if i want to go faster on asphalt i can go between 17 and 35 ?
if i am in the forest, where there is gravel and stuff, i can go wider than 35(actually on) ? (ofcourse i won't exaggerate but for example 37-39-40 ?)
to get more stability in mad terrain ? (and perhaps in winter when i have the tyres with spikes i'd better go larger than 35 ?

please help
thank you in advance
M.

here's Schwalbe tyres where i look for sizes :

https://www.schwalbe.com/gbl/en/produ...oint=Tour/City

Go shopping for a caliper so you can measure things , they are cheap..

Measuring things answers many questions like this..

want faster , do like the Pros do Tubular rims and tires, but the biggest drag is You.

you are sitting up, which is good , you can see better .. up there, but your chest is a larger surface area

than your shoulders when you are really bent over, like in a Racer's tuck .. for more air-Resistance..


May I suggest you are over stressing 'fast' .. or just pop out a Grand for a decent road bike .. the N+1 solution..

622-17 is the size of the rim. The 17 is the rim's mounting width.

If you want to go faster, tire size is way, way down the list of things to change.

Legs and lungs are at the top of the list. Work on those and you won't need to fret over tires.

As for what fits on your bike, fietsbob is right. Measure. You don't need calipers. A cheap plastic ruler with millimeters on one side will do.

A 17mm wide rim can take 25-50mm tires:
https://www.schwalbetires.com/tech_in...dimensions#rim

As for what will fit your frame/fork,you need to measure like fietsbob and tsl said. Also note that wider tires are also taller,so in addition to side-to-side clearance,you'll need to check for height at the top of your fork crown,seatstay bridge,and chainstay bridge. The parts circled in red here:

This is a handy chart on Sheldon Brown's site. Scroll down to width considerations.
https://sheldonbrown.com/tire-sizing.html
According to this chart, you could use 25-37 mm tires.

ty everybody

I have Smart Sams on my bike and I wouldn't hesitate to put the same size Marathon Plus/Deluxe/Extreme/etc... for you 35-622.

However, I'd look at a 50-622 personally if you're on asphalt most of the time.

These are really good tires for the money:

https://www.bike24.de/1.php?content=8...;product=39598

it should be noted that's €29.99 for a folding Schwalbe Marathon tire in a MTB size (559). That's one hell of a bargain as it includes shipping to my door.

if you're on this side of the pond, Schwalbe tires are super-cheap from German bike websites