Fortezza Tricomps

Lagavulin

I've just bought a pair of these. I see they can go up to 170psi but I've never ran a tyre that high.
I believe my rims can take that.
Can't find any info regarding my inner tubes though pressure wise (Conti Race 28s).

I've mounted them and inflated them to my usual pressure (120-125) and they still feel quite soft.

Is anyone else on Tricomps and can I ask what PSI you run?

Smokin Joe

I run 120 front 130 rear on mine, which seems to give the best ride for my 70kg weight. I have run at 145 but found them a bit harsh, 170 would have my fillings leaping out of my head.

They shouldn't feel excessively soft at 120, are you sure your gauge is accurate?

Lagavulin

Hmm, I believe its ok. I've just inflated a set of Spesh Mondos and pair of GP4000's to their 125 PSI (on the gauge) and they seem nice and hard.

They don't feel really soft, but theres definitly a bit of give in there, as if there might be enough for a pincher.
I'll let some air out and try again. I've got an independent pressure guage so I'll dig that out as well and take a few readings before I set off in the morning.

Smokin Joe

I think you'd have to go very low in pressure to risk a pinch puncture. I've just given my front tyre a thumb test and while there is a bit of give it wouldn't concern me. Difficult to say without comparing side by side, but good quality tyres do have a more supple casing.

Lagavulin

OK, thanks Joe for the replies.

I'll give 'em a bash in the morning if its nice. If its manky I'll bring the Aksiums, Krylions and Raceblades out to play... again.

May I just ask which inner tubes you use with your Tricomps?

Smokin Joe

I've got Vittoria Ultralites.

Lagavulin

Cheers.

dombo6

Great tyres. The 170 psi limit is always a good talking point if nothing else.

I used to run mine at 125 front and rear which was perfect for commuting, club rides etc for my weight 67 kgs.

The tubes make little difference - their pressure limit is determined by the tyre that encases them. Unsupported by the tyre they will burst at 10 or 20 psi. I just buy twin packs for a couple of quid from Decathlon, talc them and chuck em if they puncture.

simon_adams_uk

I use them at about 140psi - no problems so far...

S

SteveR_100Milers

I only have mine at 110 psi, and Im 95Kg. Only 1 puncture all year....

pjm-84

I run mine at 125psi and I'm 100kgs.

Remember your rims with have a PSI limit

Lagavulin

Thanks for the replies.

I slung them on my good wheels and went out on Sunday on them.
They seemed very good. It was nice and dry but I had a load of confidence cornering on them. Found myself urging cars to get a move on on roundabouts and the like - rare for me.

They also pimped my ride quite a bit. I stopped down by the marina for a bit. Difficult to tell what was getting more attention. The giant crane taking the mast out of a yacht or my bike. Not bad for a Allez Sport.

I'm just wondering whether to order another set and stick them on my Aksiums as well.

As for the rims, DT state the 1850s are good for 12 bar which i make out to be 175 psi, but as Smokin Joe mentioned, shortly followed by a trip to the dentist no doubt.

LangerDan

The limit is often not the tyre, tube nor the rim but the rim tape / band. Some of the tapes have pressures of as little as 8.5 barg stamped on them. Higher pressures cause the tape to deform over the spoke holes, possibly exposing the metal edge with obvious results.

Lagavulin

Following four rim-side, involuntary, ill-timed releases of air I added doubled up the tape (a layer of Velox tape + the plastic stuff supplied by DT Swiss).
On two cheaper wheelsets I replaced the plastic tape entirely with Velox.

So far so good. None of those nasty ‘p’ words to date.