Today Zipp launch their 1ZERO HITOP MTB Wheelsets. They feature a proprietary carbon layup to provide compliance and confidence when the trail gets rough, low weight for effortless accelerations and climbing, while a winged rim top provides a smooth resting surface for the tire, reducing the chance of pinch flats after a rock hit. See the full press release, and find out about local availability below:
1ZERO HITOP SW
Riding is believing with the Zipp 1ZERO HITOP SW MTB wheelset when it comes to making you faster. Trail compliance is vital, with modern cross-country races becoming rougher and more challenging. No longer is it good enough for an XC wheelset to be stiff above all else. Instead, a wheelset should feel alive.

The 1ZERO HITOP SW carbon rim complies with the terrain thanks to Zipp’s proprietary HITOP Technology for carbon layup. The result is a lightweight XC wheel that carries speed through all sections of the trail, rocks, roots, and ruts with the durability required for a trail bike with up to 130mm of travel. A compliant wheel provides more confidence. You don’t have to work hard to spin it up to speed or fight your bike when things get chunky. The 1ZERO HITOP SW also comes with the TyreWiz tire-pressure monitoring system, so you’ll always have your tire pressure dialed in for optimal performance. Among the lightest on the market, the ZM2 SL hubset ensures you’ll be quick to accelerate and back on the pedals sooner after corners with the 1ZERO HITOP SW.

SPECIFICATIONS
Rim Depth: 21.2mm
Rim Inside Width: 30mm
Weight(g): 1325g
Rim Construction: Carbon – Hookless
Tire Compatibility: Tube-type or Tubeless tires
FEATURES
- HITOP Technology produces proprietary rim layup to provide compliance and confidence when the trail gets rough
- Low weight for effortless accelerations and climbing
- Winged rim provides a smooth resting surface for the tire, reducing the chance of pinch flats after a rock hit
- TyreWiz 2.0 tire-pressure monitoring system features a seamless design
- ZM2 SL hub with 66 points of engagement
- Standard or Torque Cap options on the front hub
- XD or Microspline driver-body options
- Lifetime Warranty


1ZERO HITOP S
Zipp’s 1ZERO HITOP S MTB wheelset melds high value with high performance for a better and faster ride. Trail compliance is vital, with modern cross-country courses becoming rougher and more challenging. No longer is it good enough for an XC wheelset to be stiff above all else. Instead, a wheelset should feel alive. The 1ZERO HITOP S carbon rim complies with the terrain thanks to Zipp’s proprietary HITOP Technology for carbon layup.
The result is a light XC race or adventure wheel that carries speed through all sections of the trail, rocks, roots, and ruts with the durability required for a trail bike with up to 130mm of travel. A compliant wheel provides more confidence. The 1ZERO HITOP S features the dependable ZM 900 hubset.

SPECIFICATIONS
Rim Depth: 21.2mm
Rim Inside Width: 30mm
Weight(g): 1495g
Rim Construction: Carbon – Hookless
Tire Compatibility: Tube-type or Tubeless tires
FEATURES
• HITOP Technology produces proprietary rim layup to provide compliance and confidence when the trail gets rough
• Low weight for effortless accelerations and climbing
• Winged rim top provides a smooth resting surface for the tire, reducing the chance of pinch flats after a rock hit
• ZM 900 SL hub with 52 points of engagement for fast acceleration
• Standard or Torque Cap options on the front hub
• XD or Microspline driver-body options
• TyreWiz tire-pressure monitoring system sold separately
• Lifetime warranty
TYREWIZ 2.0
Tires connect your bike to the road or trail. So, it’s no surprise that optimized tire pressure directly enhances your comfort, rolling resistance, and speed. TyreWiz 2.0 is redesigned for accuracy and greater compatibility for differing rim depths to provide precise pressure data in real-time for your best ride. Lightweight and durable, TyreWiz 2.0 utilizes LED lights to indicate when tire pressure is outside of the target range with an alert for low or high tire pressure. Running optimal tire pressure is a crucial factor in maximizing the speed and performance, especially on modern wheels. TyreWiz 2.0 allows you to make decisions affecting rolling resistance, traction, tire wear, and rider comfort. TyreWiz 2.0 also interfaces with the SRAM AXS app to provide personalized tire pressure recommendations. With a universal rim adaptor and multiple valve lengths, the device sits flat on road or MTB rims. With the standard hand pump measuring at only +/-5% accuracy, TyreWiz 2.0 eliminates barriers by taking the guesswork out of tire pressure to make you faster.

FEATURES
• +/-2% accuracy at a resolution of .1 PSI
• Waterproof and dust proof (IPX7)
• Personalized tire pressure recommendations in the AXS smartphone app for iOS and Android
• Inexpensive and widely available CR1632 battery lasts up to 300 hours.
• Lightweight at 10 grams
Local Pricing and Availabilty
The Zipp 1ZERO HITOP S MTB wheelset is expected in South Africa in late November. Please contact Cape Cycle Systems for pricing and more details.
I love seeing big brands try something new and sensible at the same time.
The outer wall design of the Zipp 1Zero Hitop rims will certainly reduce pinch-flats and damaged tyres.
Their prices on the Zipp website are $1350 for the Hitop S wheelset (1495g) and $1950 for the SW (1325g).
Roughly translated to ZAR 27 000 and ZAR39 000 respectively. (Local SA price may or may not be the same, who knows?)
What I find very interesting is that Chinese rim maker, Nextie, has had these similar shape rims available for about a year already, and look to be very similar indeed.
For comparison, using the Nextie Vista Omega rims, Pillar PSR Xtra1420 bladed spokes and brass nipples, and DT Swiss 350 straightpull hubs, one could build a 1325g wheelset for around R10k less than buying a set of Zipps.
I've used these rims with i9 1/1 hubs and the set came to 1420g and cost the customer R27k. (same as the Zipp Hitop S option, but with arguably better hubs)
In conclusion, nice to see sensible innovation in the carbon rim market.