Tyre sizes are confusing!

[Crooty78]

Hi all,

Im looking to upgrade/replace the continental tyres on my pro connect. I looked at the size on the sidewall but it has confused me, can anyone give me a size of innertube and tyre I should buy? I just know if I order some tyres and innertubes myself I will get the wrong sizes

Ps links to sites with good deals and mail order are welcome!

 

[amigafan2003]

What size is your tyre?

 

[Crooty78]

37-622 (2/8 x 13,8 x 15,8)

 

[amigafan2003]

Ok, so that's a 700c x 37 tyre - so get an inner tube the same size - you'll find they'll fits a range - say 700c x (28 to 40).

http://www.ebay.co.uk/sch/i.html?_sacat=0&_nkw=700c 37 inner tube&_sop=15

Find the lowest price continental.

 

[Mussels]

Make sure you buy the right valve type.

 

[Crooty78]

Yes those silly woods valves caught me out when i bought the bike. It arrived with soft tyres from the courier after i bought it from ebay, so i couldnt ride it until i got a woods schrader adaptor! Def getting schrader valves this time

 

[Crooty78]

Thankyou amigafan thats helped me out

 

[Ajax]

Ok, so that's a 700c x 37 tyre - so get an inner tube the same size - you'll find they'll fits a range - say 700c x (28 to 40).

700c 37 inner tube | eBay

Find the lowest price continental.

Anyone in the market for ordinary inner tubes might want to spair a thoughts and few extra pounds for self healing tubes. eg,

http://www.amazon.co.uk/Trax-Self-Sealing-Bicycle-Presta-Valve/dp/B001N3ILGS/ref=pd_sim_sbs_sg_4
Dr Sludge Self Sealing Inner Tube 700 28-35c SV: Amazon.co.uk: Sports & Outdoors
http://www.amazon.co.uk/Slime-Self-Healing-Tube/dp/B0082BC6OW/ref=pd_sim_sbs_sg_7

etc...

 

[JamesC]

I am a big fan of Schwalbe tyre equipment; in particular for lack of punctures.

You can download their complete 2012 catalogue here, but it is a big file.

As above, you will always be looking for 700C diameter, but chosing how fat the tyre needs to be for your roads/tracks etc and for your comfort. Fatter tyres soften the ride; very fat tyres can take the place of suspension.

(Does your ProConnect have a rigid front fork or a suspension fork ?)

Typically, the ProConnect has mudguards and metal rims to suit tyres from about 700Cx28 to a slightly fatter 700Cx35.

Personally, I have always favoured the next size fatter 700Cx38 Marathon Plus Road Tyre to soften the ride and nowadays use the 700Cx40 Marathon Plus ATB Tyre (now out of production I think). However, I have fitted wider mudguards to allow for these sizes, together with Mavic A319 rims (for rim brakes).

Note that with fatter tyres, you need to let the air out of the rear tyre when fitting the wheel back into the dropout slots.

Conveniently, all these tyre sizes are accomodated by the Schwalbe AV17 tube (AV = AutoValve usually called a Schrader valve).

Between the metal rim and the inner tube is the rim tape. Again I have stuck with Schwalbe and use their PU rim tape which is a continuous circle rather than pulled off a roll. You would need to check what width of tape is already fitted to your rim - it might be 16mm or 20mm wide. My width of rim takes 20mm tape.

Over the past 5 years, done about 10,000 miles spread between 3 bikes with one puncture.

James