Mawbs Posted May 13, 2016 Posted May 13, 2016 have to say im very happy with the Vittoria Mezcal G+ i bought for the rear of my Trance. so far about 3months now it holds a line well and doesnt show any signs of wear yet. Only thing is they not cheap, but if it lasts well then i can accept that. As we are going into dry season now i might buy another for front to replace the NNic i have there at present.
stefmeister Posted May 13, 2016 Posted May 13, 2016 Fill your tyres up with enough sealant and pump it up to 3-4 bars. Spin the wheel every now and then, then leave it over night like that. Deflate to desired pressure and it should last longer. Forget about spending money on new rubber if your tyres aren't properly seated and/or if there's not enough sealant in them.
EttienneCT Posted May 13, 2016 Author Posted May 13, 2016 Thanks for the advice guys, after riding bloemendal this eve the rear tyre was still hard so i think running at a higher pressure is the key. I will top the wheel up with sealant tomorrow.
RockCoach Posted May 14, 2016 Posted May 14, 2016 woah woah - guys, hold your horses here. Before recommending different tyres for the application (all of which are great recommendations) let's apply a bit of common sense... The purgatory is a great rear tyre, and if IT isn't seating, and is continually losing air, chances are so will another tyre, regardless of how good it may be. So - I'll ask a couple of questions: 1 - what type of casing is it? Grid? Control? If the latter, it's their lightweight casing and may be the source of your problems and it may leak air, and I'd suggest the GRID casing2 - what tubeless conversion have you done? Ghetto? Stans? Who did it? It may not have been installed properly and the strip may not be seated properly. Also it may just be leaking air from there. 3 - have you checked the valve itself for leaks? Often this is overlooked and is a source for LOADS of frustration4 - what pressure do you run the tyre at? On the standard 19mm internal P-XC2's, you're going to have to ensure that your pressure is kept on the higher end, in order to keep the tyre bead seated and prevent burping of the tyre, which results in loss of air. That's unfortunately a side effect of the narrow rims. Something that is entirely rectified by going wider (that's what she said)5 - are you sure there is no small cut in the sidewall of the tyre, just by the rim lip? Often these can't seal properly, and let air out at a very low rate. If it's the tubeless conversion that is suspect, then I'd suggest getting some gaffa tape / gorilla tape / duct tape and taping your rims (about 3 or 4 full layers out to do it) ensuring that you've covered the entire rim bed (NOT up the side of the rim - that would compromise the relationship between the lip and the bead) and get a tubeless valve (cheap - about R 120 for 2 from any LBS) and ensure that that sucker is screwed down TIGHT. I've personally had more success with the ghetto duct tape routine than the stans rim strip and valve all in one combo... Once all the above has been checked, and ruled out, THEN you may start looking at alternative tyres. But to go for a different tyre, after you've already got the industry's most affordable tyre brand, and if it's not the tyre your problems may well persist, is a bit premature. BTW - for a 2.25 - 2.5 tyre the optimal rim width would be over 20mm internal, preferably 25+. I'd list that as an upgrade on the trance as soon as possible. You only need buy one rim at a time if you want to. But it will ensure great improvement over the stock rims. Once all the above has been checked, and ruled out, THEN you may start looking at alternative tyres. Bikeshop experience says that in 95% of cases it's- tubeless tape has been damaged- some other type of tape has been used
Madone69 Posted May 14, 2016 Posted May 14, 2016 Shoo. Not a mention for the Maxiss Crossmark. I'm i missing something bad about them or what
Captain Fastbastard Mayhem Posted May 14, 2016 Posted May 14, 2016 Shoo. Not a mention for the Maxiss Crossmark. I'm i missing something bad about them or whatyeah - they suck. Only thing they have going for them is a reasonably tough casing and performance on hardpack, hardpack and... hardpack. But that's because it mimics tar.
DJR Posted May 14, 2016 Posted May 14, 2016 Shoo. Not a mention for the Maxiss Crossmark. I'm i missing something bad about them or whatRiding anything other than tar with a Maxiss Crossmark on the front is a quick way to get a passion gap.
JXV Posted May 14, 2016 Posted May 14, 2016 Hi everyone, I am looking to replace the tires on my 2015 Giant trance 2 650b. I am riding the tygerberg MTB trails for 3 months now and still new to the scene. I need some advice on the best value for money tyre and for the application. As i am still starting out i am not doing crazy DH rides, but would like to get a set of tyres that is good on the climb and decent on the descent. Any recommendations and advice would be greatly appreciated. Currently riding on 27.5 x 2.3 purgatory tyres, but my rear wheel keeps going flat with no holes found and the cycle shop said i don't have proper tubeless tyres on... but a proper tubeless conversion was done. Please help as i don't know where to start.... Purgatories are quite nice grippy tyres. If you dont have the Grid casing they tend to leak air through the sidewalls so the sealant needs to be replaced every 4 months or so because it deteriorates with age. Try new sealant and valve before giving up on the tyre. The Spez Ground Control makes a nice rear tyre. Grippy but faster rolling than the Purg. Get one with a Grid casing. There are other options that will suit your bike as a nice grippy rear tyre for trail riding including Onza Canis, Maxxis Ardent UST (not as grippy as Purgatory but tough and reliable) and a few others. I run Purgatory front and ground control rear. Had Ardents front and rear before. The Purg/GC combination outperforms the Ardents bigtime in corners. Lighter too but not as tough. Sent from my SM-G900F using Tapatalk
JXV Posted May 14, 2016 Posted May 14, 2016 Shoo. Not a mention for the Maxiss Crossmark. I'm i missing something bad about them or whatMixing a rear Crossmark with a front Purgatory is a recipe for having your tail overtake you in the corners. Crossmarks are not grippy enough if you give it horns on steep trails. But they're great for high milage with low technical content. Sent from my SM-G900F using Tapatalk
Captain Fastbastard Mayhem Posted May 14, 2016 Posted May 14, 2016 Mixing a rear Crossmark with a front Purgatory is a recipe for having your tail overtake you in the corners. Crossmarks are not grippy enough if you give it horns on steep trails. But they're great for high milage with low technical content. Sent from my SM-G900F using Tapatalkaka road cycling
JXV Posted May 14, 2016 Posted May 14, 2016 aka road cyclingI was trying to be diplomatic.... Sent from my SM-G900F using Tapatalk
RockCoach Posted May 16, 2016 Posted May 16, 2016 Crossmarks however still remain the most popular tyre by far. I think most shops just put them on whenever a customer wants a tubeless conversion.
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