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Maxxis Exception series tubeless.....good or bad?


scottm8's picture

By scottm8 - Posted on 13 April 2011

I just received some tyres I bought from wiggle. I bought a standard (non tubeless) Maxxis Ignitor to run tubeless with stans sealant.
The problem is the tyre they sent is the exception series not the standard one i thought i was getting.. Can I run the exception tyre tubeless with stans sealant as i normally would with a standard tyre?
I know the side walls of the exception series are alot thinner. Im a bit worried about using this tyre at the dirt works in a couple of weeks too, but if i send it back i doubt i will receive a replacement in time for the race.

Has anyone had experience with the Maxxis exception series that could offer some advice?

Cheers

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Trev's picture

I am running the Ignitor xc on xt rims using frm? sealant have had one puncture that sealed up no probs. The sidewalls are thin so I run 30-35 psi but it's all been happy days. ( only use these for "race" tyres ) and have only done about 250ks on this set up. hope this helps These are exception series

nh's picture

I set up the crossmark exceptions that came with my bike for tubeless. After the second lap at of the scott 24 course I ripped the sidewall so badly that I couldn't even use it with a tube.

I am using one on the front with a tube for a bit more support at the moment and haven't had any problems. But I would not risk it again in a race.

CharlieB's picture

Only used them racing with (very light weight) tubes with no problems. This was super lightweight and significantly lighter than with lust tires, but risk punctures, etc - oh the trade-off for racing.

I failed to get them to bead tubeless as this was going to be my ‘race’ setup. I will admit though this would have been a high risk strategy, especially given my susceptibility to pilot error!

Jason P's picture

I would only use Exceptions setup tubeless on your race wheelset. And then only on hardpack singletrack with very few rocks or sticks. I've torn the sidewalls, particularly on the front when I've used them setup tubeless for trail riding in Kiwarrak SF.

I quite like Maxxis Exceptions converted to tubeless, they tend to seal fairly easy. Kenda folding bead DTC Small Block Eight and Karma Stick-E on the otherhand have lots of pin prick holes when new in the sidewalls and take a lot of shaking and stuffing around.

It sucks when you tear a sidewall trail riding and have to insert a business card as a patch and a tube. Might as well just run them with tubes if you are trail riding and hope there are no stray sticks or sharp rocks.

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