Tyre pressure monitors......How safe are they ?

[dazza]

My rear tyre was coming to the end of its life and kept going down. Whilst waiting for a flush week and the delivery of some angled valves I thought it would be a good idea to fit a couple of tyre pressure monitors. I did wonder if they would be ok because they were steel and alot heavier than plastic caps. Anyway went out for a blast and this was the result :eek

[dazza]

Certainly have no confidence in these and makes me wonder if they've been speed tested. My tyre went down very quickly as you can imagine so I'm just glad I wasn't going totally flat out, was going fast enough to make me feel lucky though. So beware foccer's.

[Noj]

Hi.


It's a good point that you mentioned the weight. Adding weight to the valve stem could stress the rubber and increase failure, which on a bike could be potentialy serious.  :eek


Ther are phonomal centrifugal forces on the valves, espicaly if you ride 'progressively', and lets face it we need both Tyers unlike like a car that stays up right mostly when loss of a tire.


due to the lack of a dust cap I found due to my exsessive 'progressive' riding technique the valve was getting depressed due to the centrifugal force letting out the presure. The Tyer had no holes and was not due to tempt change.

[ghostbiker]

Been useing those caps for about 3 years now and at least 4 or 5 diff sets of tyres with 0 problems
it did cross my mind about the extra weight so i do actualy keep a check on the valevs when i clean or do maint.
used to use the flashing led ones on my old trike and they are a lot heavyer as they have batterys in as well lol again with no issues but i wouldnt use those on the 1000 due to speeds are greater.
they were recomended by not only the AA, RAC and IAM's but have also seen many used on training bikes and the instructors round here to. I got mine from the IAM's magazine infact but dont remember seeing them in there last few times so maybe they have seen problems to with long term use.

[Strifae]

I used them on my old Fazer for 3 years with no problems whatsoever

[solorider]

My rear tyre was coming to the end of its life and kept going down. Whilst waiting for a flush week and the delivery of some angled valves

i was told by a tyre place not to use the screw on tyre valve adaptors all the time as they can also put stress on the valve

[dazza]

Thinking about it, this could have been caused by over-tightening but when you hear air escaping as the pressure activates the monitor in the cap it's very hard not to give that last little nip. Saying this, when you know what can happen to them it's impossible to not think about it when riding. IMO you don't need to add anything to the list of things to worry about.

[Gingernutz]

Had them - and took them off as they showed green even when my pressures were dangerously low. Never again and wouldn't recomend them to my worst enemy

[locksmith]

Differing opinions possibly due to different manufacturers I'd have thought.

[BBROWN1664]

I used to have a Renoooo Laguna with tyre pressure sensors built in. Trouble was the stupid French software coupled with the recommended pressures in teh handbook.

with teh standard settings in teh computer it worked fine if you used the "one man and his dog" prssures in the tyres. Up the pressure to the heavily loaded or high speed pressures and I had the warnings going off for over pressure after 20 minutes of motorway driving.

I now prefer to check the pressures myself and go by what looks right or feels wrong when driving or riding between checks.

[dazza]

Confidence now restored with these solid angled valves fitted

[Grahamm]

Confidence now restored with these solid angled valves fitted

I use those with a pressure gauge in my right hand jacket pocket

[ghostbiker]

One thing i thought i would mention. although i have been useing them for a fair while, i do still weekly check tyre preasures and condition with my digi gauge. this way the caps are getting used to give me piece of mind on a day to day bassis and as the caps are going on and off the plunger gets used so wont stick.
i know most ppl stick them on and forget about them, but the plunger will eventualy stick if not used. also getting the right psi range is very important. i have seen ppl use psi ranges way outside what they actualy use on thier tyres. :eek

they are not there to replace your checks just to supliment them

[MadDogMcQ]

Agree with GhostBiker. I've used them for a long time but don't rely on them 100%.  In fact, just being there often reminds me to check the pressures. (And up to now, they've always been +/- 1lb).

[R1FSR]

where did you get those ones from as the ones ive seen are big ugly [email]b@stards[/email] ..they look neat and tidy ...also how do they fit ?
cheers

[dazza]

If you mean the caps e-bay no.290718731939 and they just screw on, if you mean the valve Watling tyres £5 a pop.

[R1FSR]

yeah sorry i meant the valves cheers for the info