Following their ultralight Valor rims, the all-new Stan’s NoTubes Arch and Crest CB7 carbon mountain bike rims build in the comfort and stiffness on wider, more capable wheels. The new Arch CB7 and Crest CB7 use Stan’s RiACT layup and rim shape, their Bead Socket Technology, and low profile sidewall to create a comfortable, fast rolling and sharp handling wheelset.
The RiACT design combines a specific layup pattern with a highly impact resistant nano-polymer to build in 10mm of vertical compliance, without giving up lateral stiffness. While often times carbon rim weights are on part with alloy rim weights, the benefit is that they’re much stiffer for better handling. And done right, they can be much stronger and more impact resistant, too, which was the goal here.
Their BST bead hook and sidewall design is shaped to secure the tire even under extremely low air pressures (and Stan does like really low air pressure). The interior sidewall design is intentionally short, which lets the tire’s sidewall move more naturally and, they say, reduces pinch flats.
STAN’S ARCH CB7 CARBON RIMS
The Arch series has been Stan’s wider trail-ready wheels for years, and now they’ve got the carbon upgrade. Designed for anything up to enduro racing, the lightweight should make climbing between stages easier, too. And they’ve been testing it in EWS races, proving it’ll hold up to top-level abuse.
- Use: Trail, All-Mountain and Enduro Racing
- Internal Rim Width: 26 mm
- Optimal Tire Sizes: 2.25” to 2.50”
- Max Tire Pressure: 39psi (2.2″ tire) – 36psi (2.5″ tire)
- Hubs: Stan’s Neo with Durasync 28-hole Front, 28-hole Rear
- Spokes/Nipples: Sapim Race Black 2.0/1.8/2.0mm, Sapim Secure Lock Alloy Black
- Wheel Weights and Sizes: 1720g (27.5”) / 1794g (29”)
- Rim Weights: 450g (27.5″) / 475g (29″)
- Max Rider Weight: 230lb (104kg)
STAN’S CREST CB7 CARBON RIMS
The lightweight Crest CB7 Series rims weigh in at a claimed 325g, making them among the lightest XC rims on the market. Available only for 29er wheels, the lightweight should offer racers the snappy acceleration they want while still being able to handle the rougher modern World Cup courses.
- Use: Cross Country Racing
- Internal Rim Width: 23.0 mm
- Optimal Tire Sizes: 2.00” to 2.25”
- Max Tire Pressure: 40psi (2.00″ tire) – 38psi (2.3″ tire)
- Hubs: Stan’s Neo with Durasync 28-hole Front, 28-hole Rear
- Spokes/Nipples: Sapim Force Black 2.0/1.7/1.8mm, Sapim Secure Lock Alloy Black
- Wheel Weights and Sizes: 1,452g (29”)
- Rim Weight: 325g
- Max Rider Weight: 230lb (104kg)
BUILD OPTIONS & PRICING
You’ll be able to get both Arch and Crest rims separately (28 or 32 hole) or built into complete wheels (28 hole stock configurations, 28 or 32 hole custom builds). Options include Boost or standard hub widths; all the current axle standards (including SRAM Predictive Steering and Cannondale Lefty/Lefty SuperMax); Centerlock or 6-bolt disc mounts; and Shimano, SRAM XD or OneUp / Hope Minidriver freehub bodies. All stock wheels are built with easily replaceable Sapim Force J-bend spokes and nipples, laced to their latest Neo hubs with 6-pawl, 10º engagement. Those hubs get triple freehub bearings for better durability, and a CNC machined hub shell body.
Both Arch CB7 and Crest CB7 rims are $600 each, complete wheelsets are $1,399. All Stan’s carbon rims are covered under their two-year warranty, extended to five years once you register your purchase, which also adds lifetime crash replacement coverage.
