Conti Mountain King 'Supersonic' - too thin for tubeless?
CHollingbery
Posts: 29
Hey guys and gals,
I'm getting some new wheels and are going to diy tubeless them, but I've been toying with the thought of trying to use my MT supersonics. If any of you have used them you'll be aware of how thin they are, but also how damn fast too.
Question is: Are they too thin?
They are: quite loose on the rim, thin walled, not ust.
Am I crazy? Should I not bother and just use my Kenda BlueGrove/Nevegal combo?
PS. Its also my first dabbling into the world of tubeless...
Cheers,
Chris
I'm getting some new wheels and are going to diy tubeless them, but I've been toying with the thought of trying to use my MT supersonics. If any of you have used them you'll be aware of how thin they are, but also how damn fast too.
Question is: Are they too thin?
They are: quite loose on the rim, thin walled, not ust.
Am I crazy? Should I not bother and just use my Kenda BlueGrove/Nevegal combo?
PS. Its also my first dabbling into the world of tubeless...
Cheers,
Chris
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Comments
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I've heard of lots of people using Speed King Supersonics tubeless - not sure how different the mountain kings are. Have a gander here http://weightweenies.starbike.com/forum/ they seem quite a popular tyre due to their light weight, and most seem to be using them tubeless. You'll obviously need a rim strip and some sealant in there though.0
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they're very similar in carcass (speedK + mountainK).
Maybe it'll work...?0 -
Should do provided you use a rim strip - they're about £25 each for Stans ones though!0
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Anyone got any tips for mounting thin walled tyres then, bearing in mind these tyres are also not particularly tight on the rims?0
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A good tip i've found for mounting "loose" tyres is to fit them with an innertube, and inflate it to about 50psi (i.e. quite high). This seats the tyre on the rim. You can then deflate it and carefully undo only one side of the tyre and remove the innertube. You now have one side of the tyre seated and only have to worry about seating the other side. Having two people to do the job is also a bonus as one can work on the bead and the other can be pumping (ooh er) - makes it much easier than trying to do it all yourself!0
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well I'll be having a go when my wheels from merlin come (its taken them 7 days now and it still hasn't moved into the 'processing' stage
)
I'll make a post saying how it went soon.
Chris0 -
i tried with supersonic tyres, cant remember if it was mountain kings or speed kings, think it was th latter. i could get them to seat on the rim and did as mentioned above, fitted them with a tube at high pressure then left them over niht, i think this stretched them.
i could then inlate them with a track pump but i could not get them to seal no matter ho much shaking and rattling and flipping and soapy wter and time and effort and screaming and hair pulling.
good luck though.0 -
I've got Race Kings and Speed Kings Superconics converted to ghetto tubeless with Stans. The rim strip makes them a bit tighter to get on/off the rims (DT 4.2).
I find them very easy to set up but they are never totally airtight - they require an air top up every week or so.
If you've got Schrader rims the easiiest way I found was to remove the valve core and temporarily inflate them - the air goes in way quicker and seat almost immediately. With Presta its more of a fuss but I've got a compressor and it makes short work of it. I'd thoroughly recommend mouting them and inflating them (even with a tube) before you go near the sealant.
Good luck.0 -
Took me a LOT of sealant and a few days of trying to get my MK protections sealed and even then they'd lose pressure faster than any other tubeless combo I've tried. Personally I wouldn't bother, especially with supersonics, unless you want something really lightweight for a race and don't mind the gamble. For every day riding I just don't think they'd be worth the hassle.0
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I'm going to be doing the SDW (in one day) in a few weeks. Maybe it would be 'safer' not using the supersonics and just go with my blue grooves+nevegals. Don't what them popping off because the side walls are too flimsy...0
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They shouldn't pop off (unless you're running very low pressures and are a *ahem* rotund gentleman). When people mention them losing pressure, they mean overnight i think. Once they're pumped up and rolling they should be fine as the sealant is sloshing round like a good'un!0
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I'm 64kg (well.... 65kg now hopefully...
) and I like my tyres quite high pressure anyway......
I'll try it.0 -
been trying to get a blue groove on the front but its waaaay too tight! can't get it on!
A bit scared using tyres levers though - will they break the rim strip?0 -
They shouldn't do if you're careful. I usually use a lever to seat the bead - i've not used a rim strip though as mine are UST rims and tyres.0
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managed to get it on.
problem is it doesn't inflate! It seems the reinforced area around the valve is protruding a bit to far onto the rim and stopping sealing. sigh. any ideas?0 -
Whoop whoop!
They're both on!
Took me over 10 hours but I'm finally there. Ended up sitting there with inner tubes and a scalpel cutting down the outside surfaces around the valves! Seems to have worked. Both inflated with a bit of pushing/holding around the valve area. Tyres seem to be seated perfectly evening all the way around.
What a faff!0 -
forget conti full stop for tubeless in fact forget tubeless full stop unless your using ust rims.0
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adb1006 wrote:A good tip i've found for mounting "loose" tyres is to fit them with an innertube, and inflate it to about 50psi (i.e. quite high). This seats the tyre on the rim. You can then deflate it and carefully undo only one side of the tyre and remove the innertube. You now have one side of the tyre seated and only have to worry about seating the other side. Having two people to do the job is also a bonus as one can work on the bead and the other can be pumping (ooh er) - makes it much easier than trying to do it all yourself!
I do this also- it does help0
