Beads
#1
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Joined: Mar 2015
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Bikes: 2014 Focus Mares AX 2.0, 2019 Cube Litening C:62 Race Disc Teamline
Beads
Hey guys,
have an issue with the tubes on my bike. I'm currently refitting the 28x1.35 (700x35c) Rocket Rons and taking the 700x28C Durano Plus off.
I had no issues with these tubes with the Durano's, but the beads wont take properly with the RR's! it's driving me nuts.
It's almost like the base of the presta valve is too big for this tyre?
Any ideas? Only other thing i can think of right now is to try another brand of tubes, but this tube worked fine with the Duranos.




have an issue with the tubes on my bike. I'm currently refitting the 28x1.35 (700x35c) Rocket Rons and taking the 700x28C Durano Plus off.
I had no issues with these tubes with the Durano's, but the beads wont take properly with the RR's! it's driving me nuts.
It's almost like the base of the presta valve is too big for this tyre?
Any ideas? Only other thing i can think of right now is to try another brand of tubes, but this tube worked fine with the Duranos.




#2
Really Old Senior Member


Joined: Feb 2007
Posts: 14,685
Likes: 1,922
From: Mid Willamette Valley, Orygun
Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3
Push the valve in, seat the bead, pull valve back out.
You have the valve seated 1st and the bead is riding on top of it.
You have the valve seated 1st and the bead is riding on top of it.
#3
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Bikes: 2014 Focus Mares AX 2.0, 2019 Cube Litening C:62 Race Disc Teamline
#4
Generally bewildered

Joined: Aug 2015
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From: Eastern PA, USA
Bikes: 2014 Trek Domane 6.9, 1999 LeMond Zurich, 1978 Schwinn Superior
#5
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Bikes: 2014 Focus Mares AX 2.0, 2019 Cube Litening C:62 Race Disc Teamline
#10
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Bikes: 2014 Focus Mares AX 2.0, 2019 Cube Litening C:62 Race Disc Teamline
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