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wordsmith

Wireless Tyre Pressure Monitoring System (TPMS)

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I have just ordered one of these systems from E-Bay: Motorcycle Bike TPMS Tire Tyre Pressure Monitoring System +2 Tyre Sensors MA1713.

I had a similar function on past BMWs, although that was internal to the tyres and showed the info on the bike's display screen.   It was always a source of some background comfort to be able to check tyre pressures each morning, especially if far from home.   This purchase should reinstate that sense of 'all's well'.   I'll report back here once fitted and in-use.

 

P1050802.JPG


Wordsmith - a '39 model; bike - a 2019 Tracer 900 GT, Midnight Black and with many farklings.   Redland Bay, SE Queensland, Australia.

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Is there any need to check/adjust wheel balance with these things installed? .... or are they really too light to create any real issue?

Just curious.

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On 9/9/2019 at 2:13 PM, dazzler24 said:

Is there any need to check/adjust wheel balance with these things installed? .... or are they really too light to create any real issue?

Just curious.

Others have said here that they don't give rise to any balance issues.   Product descripton says 'light weight, no need to rebalance wheels...'   Wheel sensors apparently weigh only 50g each.   We shall see! 

LATER EDIT!   The sensors only weigh 10g per wheel...

Edited by wordsmith
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Wordsmith - a '39 model; bike - a 2019 Tracer 900 GT, Midnight Black and with many farklings.   Redland Bay, SE Queensland, Australia.

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@wordsmith - Not sure if you are aware but you can't use those on the stock rubber valves. You will need to replace them for metal ones. At speed the rubber valves will vibrate and will eventually tear (because of the higher centre of gravity).

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Didn't know that, bugie: thanks for the heads-up.   I'll deal with that when the kit arrives.  🙁


Wordsmith - a '39 model; bike - a 2019 Tracer 900 GT, Midnight Black and with many farklings.   Redland Bay, SE Queensland, Australia.

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10 hours ago, bugie said:

@wordsmith - Not sure if you are aware but you can't use those on the stock rubber valves. You will need to replace them for metal ones. At speed the rubber valves will vibrate and will eventually tear (because of the higher centre of gravity).

Just mulling this over - where does one find and/ or have fitted metal valves?   I don't recall having seen such, except for the screw-on right-angle stems that ease access for servo tyre-hoses.   TIA...


Wordsmith - a '39 model; bike - a 2019 Tracer 900 GT, Midnight Black and with many farklings.   Redland Bay, SE Queensland, Australia.

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@wordsmith - Most tyre places should have. Failing that you can try Ebay or Amazon.


Amazon.com: metal+valve+stems

You can also use those 90 degree stem valves

 

 

Edited by bugie
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Thanks again, guys.   From the look of things the tyres need removing so the metal stems can be installed - I'll get onto the local bike tyres specialist and find out what's involved.   I appreciate the advice. 

 

LATER EDIT: there seem to be different sizes of stems to fit different installation holes in the rims.   Any ideas which is the size for our GTs?   The tyre guy can install, but wants to see them first.   The stems only cost a few dollars a pair, but it would be my luck to order the wrong ones and have to wait for replacements to arrive!   TIA... 

Edited by wordsmith

Wordsmith - a '39 model; bike - a 2019 Tracer 900 GT, Midnight Black and with many farklings.   Redland Bay, SE Queensland, Australia.

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Tyre shops will have various sizes on hand. Just have them supply and install. Buying your own won't save you bugger all. 

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The GT fiche indicates it uses  93900-00030-00, Valve, Rim (Tr412) TAIHEIYO, the same part number as all my Yamahas since 2000, and it's 11.3mm -- the most common size for Japanese street bikes.

8.3mm are also sold by most moto suppliers and is generally for European, after market, a few older Japanese bikes, etc. Cruisers and BMWs are sometimes special unto themselves. 

This guide at KurveyGirl also covers the broad strokes:

 

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26 minutes ago, StealthAu said:

Tyre shops will have various sizes on hand. Just have them supply and install. Buying your own won't save you bugger all. 

Not so!   'My' tyre guy doesn't stock them, and I'm not bothered about saving a few cents, just gotta make sure they fit.


Wordsmith - a '39 model; bike - a 2019 Tracer 900 GT, Midnight Black and with many farklings.   Redland Bay, SE Queensland, Australia.

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Section 6 of the GT owners manual states the Tyre valve size as TR412. Valve core #9100   

 

Tyre valve.png

Edited by bugie
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Thanks, bugie - I didn't think to look there, not that it shows any dimensions, but the tyre guy may be able to decipher the info.


Wordsmith - a '39 model; bike - a 2019 Tracer 900 GT, Midnight Black and with many farklings.   Redland Bay, SE Queensland, Australia.

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6 hours ago, wordsmith said:

Not so!   'My' tyre guy doesn't stock them, and I'm not bothered about saving a few cents, just gotta make sure they fit.

That is surprising. Every bike I've owned has had them fitted with the first tyre change.

I would have thought all the shops carry them. 

They're  11.3mm. Get some right angles ones. 

 

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On 9/9/2019 at 12:13 PM, dazzler24 said:

Is there any need to check/adjust wheel balance with these things installed? .... or are they really too light to create any real issue?

Just curious.

I installed a TPMS on my Tracer. I can confirm that up to 160km/hr there is no wobble or notice that the sensors on the tires are even there. Past 160?????? 

I didn't do any thing special. Just screwed them on the tires and off I went.

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