Stans No Tubes ZTR Arch 29er Wheels
For those that value a stiffer & stronger set of wheels that will stand up to more punishment off road than the lightweight Crest rims, the Arch provides exactly that in a package designed for heavier riders and harder riding. While not quite as light as Stans flagship XC wheelset,  at 1755 grams the Arch wheelset still comes in at 200 grams less than most stock 29er wheels, which greatly improves acceleration and responsiveness and turns a sluggish feeling tractor into a nimble rally car. If you've been thinking about upgrading to tubeless, the Arch wheel has you covered with the clever BST system allowing you to setup your choice of a UST, Tubeless Ready or regular tyre as a tubeless setup. Included with the wheels is the required Yellow rim tape and 2 x tubeless valves so all you need to do is slap on your favourite rubber and away you go. With a QR15 front hub option, standard 3-cross lacing pattern and the stiffer rims, the Arch 29er wheelset is perfect for trail riders wanting reliability and tubeless compatibility in an option that doesn't cost the earth.

NoTubes
Originally pioneering tubeless conversion kits and latex sealant to provide riders with the assurance they needed to experience tubeless technology, Stans NoTubes has continued to expand their product range into rims, complete wheels, tyres and wheel accessories, setting themselves apart from the rest with innovative design and new technology. With their main focus being tubeless technology, the ZTR wheels come ready to be setup with or without tubes depending on your preference, though the benefits of a tubeless setup are clear; lower rolling resistance, reduced punctures and the ability to run lower pressures for more traction. 

ZTR Arch RIms
Sitting between the superlight Crest rims and the All Mountain Flow rims, the Arch is designed to address the needs of aggressive XC and trail riders wanting something that is stiffer and more durable than a racing wheelset, though still need something relatively light that will help carry them up the mountains. Coming in at 470 grams, the Arch rim is still lighter than the competition due to it's BST construction and will help you build up a set of wheels anywhere from 1650 grams depending on your hub and spoke choice. The name itself comes from an internal arch that is machined into the rim that provides a much stronger and stiffer chassis that helps build up a stronger wheel. While the Arch is only marginally deeper in it's profile compared to the Crest, the main difference is the internal reinforcement and thicker walled alloy that helps achieve the greater strength. This is an advantage for the wheel builder, as it allows them to lace up the rim with higher and more consistent spoke tension all the way round, leading to a more durable wheel that will stay true for longer.

BST Technology
One of the biggest innovations to come from NoTubes is the Bead Socket Technology used on their ZTR rims that changes the way the tyre interfaces with the rim surface. Built around a substantially lower sidewall height, the ZTR Arch rim eliminates the traditional bead hook that has featured on bicycle wheels for many years. The NoTubes designers were able to this as they created a much more secure interface for the tyres bead to lock into the rim, creating a tighter seal and the ability to run lower pressures with dramatically less chance of the tyre rolling under the bead hook. Aside from reducing rim weight, the BST technology makes for an excellent tubeless system and allows you to setup the ZTR rim with any tyre as a tubeless setup. In our experience, we have found UST and Tubeless Ready tyres to be the best pairing with NoTubes rims when setting them up without tubes, though some riders have had luck converting standard tyres to tubeless for a superlight rim/tyre combo.

The Build
All of the Stans NoTubes factory wheels come as a complete wheel that is handbuilt to the correct tension with DT Swiss spokes in a traditional 3-cross lacing pattern. The use of standard spokes allows for easy replacement and long term durability, as well as the ability for the wheels to be worked on by any competent mechanic. The Arch wheels get the lightweight DT Swiss Competition spokes that although slightly heavier than the Revolutions, allow for more even spoke tension and a stiffer overall build. The rims are laced to a ZTR hubset that uses cartridge bearings front & rear for smooth rolling and ongoing durability even when used in crappy conditions. The freehub has 30 points of engagement and is super-simple to pull apart and service should you need to clean out any contaminants that have worked their way in. Just like the spokes, the hub internals are readily available and easy to replace should you have any troubles down the line.

The Stans Arch 29er Wheelset features:

• ZTR Arch 29" rims
• Rim material: 6061 Aluminum Alloy
• Internal rim width: 19mm
• External rim width: 24.4mm
• Rim depth: 16.9mm
• BST (Bead Socket Technology) for tubeless compatibility
• 3.30 Front hub with sealed cartridge bearings; 9mm quick release or QR15 option
• 3.30 Rear hub with 30pt engagement freehub and sealed cartridge bearings; 135mm QR
• Fits 8/9/10 speed cassettes
• 6-Bolt rotor mounting
• DT Swiss Competigion spokes; 2.0/1.7/2.0
• Silver Alloy spoke nipples
• 32 spokes per wheel with standard 3-cross lacing pattern
• Weight: 1755 grams
• Rider weight limit: 105kg (230lbs)
• Includes Yellow rim tape and Tubeless valves

Stans NoTubes are the original innovators when it comes to tubeless technology