LB Carbon Rim Differences
I just got this e-mail and need help with a few things. It would be nice to understand all of the plusses and minuses of these different rims but there are a few thoughts that have me more concerned. My frames tire clearance is most limited by the seat tube so which of these rims helps lower the hight of the tire? Another concern is which of these have been the ones that people have been happy with? I don't really want to be light bicycles beta tester. I noticed some have a very short side sections and how will that effect the seat of the tire. I am planning on running tubeless FWIW. Thanks
the e-mail
For 29er rims, we have 3 types as below.
RM29C02: two version, hookless version & with hook version, 390g+/-15, USD165/pcs
RM29C06: 27mm wide hookless, 360g+/-15, USD165/pcs
RM29C07: 35mm wide hookless, 420g+/-15, USD180/pcs
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Hi GS,
I've been following LB for about 2 years now. They do have an excellent reputation and sold tons of rims/wheels. (You won't be a beta tester). I've heard they may even do OEM Carbon Rims for Spec/ROVAL. (Hence the newer hookless rims)
Since the rims are all the same diameter (BSD 622) the width of the rim has a slight effect on tire clearance, but not much. Your best bet for tire clearance is a low knob tire like Spec Renegade or Schwalbe Thunder Burt for the rear.
Differences - the newer designs are hookless. The industry is moving to hookless (Roval, Stans and now Enve). The carbon can be laid more uniformly so they are stronger & lighter. They also have a better seat to bead profile.
I would go with one of the below newer designs:
RM29C06: 27mm wide hookless, 360g+/-15, USD165/pcs
I have this rim laced with DT350s, and (32) DT Aerolite Spokes 1480gm for the set. These are best for XC. (22mm Inner Dia.)
I am going to build another set of wheels with the wider rim below:
RM29C07: 35mm wide hookless, 420g+/-15, USD180/pcs
Using Industry Nine Torch 24 Spoke Hubs & I9 Straight Pull Spokes.
(Less spokes for wider stiffer rim)
1580gm for the set. These are best for AM/Enduro. (30mm Inner Dia.)
RM29C02: This older rim design uses a shorter profile. I think the newer higher profile rims (above) are stronger and also require shorter spokes which can help stiffen the wheel a little more.
Hope this helps!