Author Topic: Tyres Help  (Read 2256 times)

Offline Johnwebley

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Re: Tyres Help
« Reply #30 on: October 07, 2026, 10:49:43 AM »


  my local tyre fitters reccomended washing up liquid,

worked ok,

  not ridden in the rain so I don't know if it bubbles up

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Offline K2-K6

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Re: Tyres Help
« Reply #31 on: October 07, 2026, 11:22:44 AM »


  my local tyre fitters reccomended washing up liquid,

worked ok,

  not ridden in the rain so I don't know if it bubbles up

At one time it seemed very common, with someone who taught me to change bike tyres recommended the same.

Its effectively corrosive to metals though, which may have more impact in how we look at our wheels and bikes on here. They couldn't give a monkey's about wheel condition in many tyre places though. Some of the manky old stuff I've seen in them buckets of slop would bring questions  :D

My interest in using something different to the soaps often used was primarily about corrosion as with older alloy wheels it plays havoc ultimately with rim/bead sealing. Ultimately to need refinishing the rim to correct it.

Both silicone and red rubber grease would seem to answer that.  Proprietary tyre soap SHOULD address that if the product is bona-fide, but many seem to chuck any old liquid soap in to make it last longer. It is, from the msds sheets near 98% water anyway.


Offline Skoti

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Re: Tyres Help
« Reply #32 on: October 07, 2026, 05:13:34 PM »
It's better to use proper tyre mounting paste.

Using rubber grease or silicone to mount a tubed type tyre may cause the tyre to spin on the wheel when accelerating or braking.
This then may possibly rip the metal valve out of the inner tube.

Contemplate the consequences of that...

Perhaps better to have the tyre professionally fitted?

Skoti


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Offline Robert W

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Re: Tyres Help
« Reply #33 on: Today at 05:17:14 PM »
Problems seating new tyres is related to the dual designation of modern tyres capable of both tube type TT or tubeless TL applications.
Older rims are designated WM, newer tubeless rims are designated MT.

The difference in the rim profile causes difficulties mounting dual designated tyres onto older rims which are slightly sloped or drop center bead seat.

Modern tubeless rims feature a cylindrical bead seat accompanied by a raised safety hump (or ridge) that mechanically locks the tire bead in place.

Remove the Schrader valve core. Use generous amounts of commercial rubber mounting paste and blast away with your compressed air. You can also use a ratchet strap tensioned liberally around the outside circumference of the tire while inflating which tends to force the side walls out while restricting the tire from ballooning outward diametrically.

Bridgestone Battlax BT46 are my tyres of choice.
Robert W, Montreal, Canada