I've seen multiple discussions of carbon 29er frames, but no such discussion of 29er rims. Current domestic carbon rims are more expensive than one of these frames. Anybody found carbon 29er clincher rims cheap?
So one minor initial concern: these are an absolute bastard to get tires onto. In fact, I haven't successfully managed to get my tires on (Small Block 8 rear, Ignitor front). Bent one Park tire lever getting the Ignitor on only to have pinched the tube, and wasn't able to get the SB8 all the way on -- and that's a tire that's mountable without levers on my old rims.Ordered these from light-bicycle.com 22nd January, USPS tried delivering them February 5th, actually got them on the 6th. Very good communication from Brian.
Without tape, skewers etc. weights come in at 696g front and 840g rear. Seem nice and true, quick ping test suggests pretty even spoke tension. I'll be running these with tubes.
- "Wider" 29" rim on new early 2013 mold/process
- Novatec D711/D712 hubs
- 32 spoke
- Alloy nipples
- No decals
The only advantage is the wheels propensity to stay true but this is associated to equal tension just as much as high tension (IMHO).For one thing, there is no advantage to the higher tension.
Except from another part of the CK site:Wheel building
[...] Disc brake wheels must be laced using a 3-or-more-cross lacing pattern. As the
torque generated by driving the cassette requires crossed spokes, so does the
additional torque on the non-drive side flange generated by the braking action.
Radial lacing your ISO hubs is considered outside of the intended use and will void
your warranty. [...]
The front ISO should be laced 3-or-more-cross with the rotor (left) side pulling spokes
(relative to braking direction) heads out/elbows in (when laced 3-cross). The final
cross of the pulling spoke must be on the outside so that, as braking force is applied,
increased pulling spoke tension will pull the crossed spokes towards the center of
the hub and away from the caliper. Lace the wheel symmetrically.
The spoke tension on each side of the wheel should be as uniform as possible.
Tension should not exceed 120kgf (1200N).
Proper wheel building technique is essential in creating a strong wheel. Wheel
building is a skill that requires proper training and specialized tools and should be done
by a trained professional.
In rare cases, when the wheel has been built at very high tension, the large drive side bearing can become loose and cause creaking.
Because you ask so nicely, these were my xc 29 LB rims. Perhaps they have been changed in the meantime..So back on page 120 I asked about people running the NARROW rims TUBELESS.
I am simply interested in whether or not anyone has anything notable to say about the reliability of the NARROW rims being run tubeless, preferably with Stan's tape or gorilla tape.
THANKS