Decent front tyre replacement?

dlockers · 9 Aug 2021 at 17:29

The trigger sport black bait(?) front wheel has a big bulge where the sidewall has given way. Disappointed given it has hardly been used. Anyway, is there a recommendation? It is a 700x38c (38-622) - I have just bought a 700x30c inner tube (is that right?).

Thanks.

Bear · 10 Aug 2021 at 06:22

dLockers said:
The trigger sport black bait(?) front wheel has a big bulge where the sidewall has given way. Disappointed given it has hardly been used. Anyway, is there a recommendation? It is a 700x38c (38-622) - I have just bought a 700x30c inner tube (is that right?).

Thanks.

Sorry, no idea about knobbly tyres as I only do road riding. The inner tube will have a range normally, so it will say 700 x 28-38 for example, so for a 38 tyre the inner tube will be fine. For your 38 tyre, you need to see if your inner tube range goes to a 38. So if its 700 x 30-38 it will be fine but if it is 700 x 23-30 say then it wont be. Basically you match the width of the inner tube to the width of the tyre

dlockers · 26 Sep 2021 at 21:04

Thanks @Bear

Weird situation - I bought a brand new Schwalbe inner tube and pumped it to 100psi (is that too much? :confused:

) and it went bang around 95psi...

These tyres are insanely tight to remove and refit too.

Anyway, I patched the exploded tube and it was fine for a bit but I went to use the bike earlier today and it was totally flat. I have ordered a new Shwalbe AV17.

I think I just need to bite the bullet and swap the tyres too. Any recommendations folks? This is what I have a the moment.

Bear · 27 Sep 2021 at 06:39

dLockers said:
Thanks @Bear

Weird situation - I bought a brand new Schwalbe inner tube and pumped it to 100psi (is that too much? ) and it went bang around 95psi...

These tyres are insanely tight to remove and refit too.

Anyway, I patched the exploded tube and it was fine for a bit but I went to use the bike earlier today and it was totally flat. I have ordered a new Shwalbe AV17.

Im not surprised it went bang if it was a 38c :cry:

I would expect a 38c to be somewhere in the region of ~50psi at a guess? A 25c would be max of 100psi, my 32c touring bike has a max pressure of 75psi. The maximum pressure should be on the sidewall of the tyre.

Yeah, some tyres are insanely hard to put on and get off unfortunately

UTmaniac · 27 Sep 2021 at 15:33

Total weight of me kitted out and my Voodoo Marasa hybrid commuter is sadly ~100Kg these days (bike ~13.5Kg). I inflate the 40mm Vee Speedster on the rear to ~70PSI and the 35mm (really ~33mm) Marathon Supreme currently on the front to ~65PSI, both with innertubes.

On a working tubeless setup, which removes the risk of impact snakebite punctures, you could probably reduce the above pressures by ~20PSI at both ends. This would give more comfort and more grip, at the cost of extra rubber wear compared to higher pressures.

dlockers · 30 Sep 2021 at 10:43

UTmaniac said:
Total weight of me kitted out and my Voodoo Marasa hybrid commuter is sadly ~100Kg these days (bike ~13.5Kg). I inflate the 40mm Vee Speedster on the rear to ~70PSI and the 35mm (really ~33mm) Marathon Supreme currently on the front to ~65PSI, both with innertubes.

On a working tubeless setup, which removes the risk of impact snakebite punctures, you could probably reduce the above pressures by ~20PSI at both ends. This would give more comfort and more grip, at the cost of extra rubber wear compared to higher pressures.

Thanks.

Any grumbles with a tyre such as:
https://www.amazon.co.uk/Schwalbe-M...tyres+700x38&qid=1632994933&sr=8-7&th=1&psc=1

They're £25 a go which seems OK but I have no idea?

Bear · 30 Sep 2021 at 10:50

dLockers said:
Thanks.

Any grumbles with a tyre such as:
https://www.amazon.co.uk/Schwalbe-Marathon-Performance-Greenguard-Endurance/dp/B004T02X8O/ref=sr_1_7?dchild=1&keywords=schwalbe+tyres+700x38&qid=1632994933&sr=8-7&th=1&psc=1

They're £25 a go which seems OK but I have no idea?

They are virtually bullet proof and heavy but you wont get punctures very often. They have a wire bead which in my experience are a nightmare to get on and off but you get used to it after a while and learn how best to do it. Hopefully you wont have to do it very often unless you are unlucky

SoliD · 30 Sep 2021 at 11:03

dLockers said:
Thanks.

Any grumbles with a tyre such as:
https://www.amazon.co.uk/Schwalbe-Marathon-Performance-Greenguard-Endurance/dp/B004T02X8O/ref=sr_1_7?dchild=1&keywords=schwalbe+tyres+700x38&qid=1632994933&sr=8-7&th=1&psc=1

They're £25 a go which seems OK but I have no idea?

Terrible tyres, won't ever puncture but if they do you won't be able to get them off the rim and will need a lift..

UTmaniac · 30 Sep 2021 at 11:13

dLockers said:
Thanks.

Any grumbles with a tyre such as:
https://www.amazon.co.uk/Schwalbe-Marathon-Performance-Greenguard-Endurance/dp/B004T02X8O/ref=sr_1_7?dchild=1&keywords=schwalbe+tyres+700x38&qid=1632994933&sr=8-7&th=1&psc=1

They're £25 a go which seems OK but I have no idea?

I've never had Marathon Greenguards, but they are well regarded by https://www.bicyclerollingresistance.com/ for a budget tyre with decent puncture protection. Bit heavy, partly down to a wire bead, but tyres at the budget end are usually wire bead rather than folding... Usually not a big deal for commuting IMO.

Some Marathon models are a pig to fit, I remember taking best part of an hour to fit a pair of Marathon Plus to my old commuter over 10 years ago! :eek:

However, I can happily fit my pair of 38mm Marathon Cross and my 35mm Marathon Supreme by hand within ~90 seconds per tyre.

https://www.sjscycles.co.uk/tyres-large/schwalbe-marathon-hs420-tyre-700-x-35-37622/ (great site for bike bits) has the 35mm Marathon Greenguard for £17 each.