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ZIPP

AMWH 303 FC/321 RIM BRAKE SPE PAIR CARBON/GLOSS BLACK

Part number 30018-8902/WS
ราคา
฿124,373.00
สินค้าหมด - Out of stock
ขนาด
สี : SATIN CARBON/GLOSS BLACK
รหัสสินค้า 30018-8902/WS รุ่นสินค้า 303FC/321
ประเภทสินค้า BIKE COMPONENTS รุ่นสินค้า (ย่อย) -
รุ่นปี - สี SATIN CARBON/GLOSS BLACK
กลุ่มสินค้า WHEEL ขนาด 700C
ยี่ห้อสินค้า ZIPP

Making up about 50% of your total race time, the bike portion of a triathlon is where equipment choices can make the difference between first and fifth. And no other equipment choice will save you more time than a disc wheel. While traditionally-shaped disc wheels are faster than their spoked counterparts, the 321 disc turns conventional design on its head, creating the fastest wheel available.

Disc wheels often fall into two categories—a completely flat shape, with structure coming from carbon fibre and a honeycomb-foam filling, or a spoked wheel that's been faired with a carbon fibre cover. In our quest to break traditions, the 321 uses a single layer of 1k carbon fibre on each side of the wheel, and it all comes together at the brake track bridge. This kind of carbon fibre is rarely used in bicycle components due to its high manufacturing cost, but it offers a bevy of performance benefits. This coveted carbon is much lighter than other layups, like 3k and 12k, and it can only be laid by the most skilled of carbon fibre craftsmen. It's complicated, but the pay-out is worth it, as it delivers a supple ride and one of the lightest disc wheels available. And in the real world, this means that it'll spin-up quickly and reduce fatigue over the long haul.

Stiffness is often the "hot-topic" in the disc wheel world, but we think it's an interesting conversation. It's long been thought that efficient power transfer and high stiffness are directly correlated, but through extensive field testing, we've determined that this isn't the case at all. In fact, our initial disc was so stiff that, under power, it wouldn't flex with the frame and this caused brake rub. This wrongly creates the perception of a flexy wheel, when really, the wheel is actually too stiff. In order to solve the brake rub problem, we first designed our optimal aero shape and then worked on our internal stiffness targets to fit within what we consider to be a desirable frame stiffness.

And while light overall weight was a development priority, our focus was aerodynamics. Through hours of Computational Fluid Dynamics (CFD) and testing in the Win Tunnel, we developed a new-to-category shape that's optimized to work with a tire for on-bike airflow. What this translates to is an all-carbon disc wheel that, on the non-drive-side, has a shape that's as aerodynamic as our current understanding allows, and a drive-side shape that's as aerodynamic as the wheel-dish and derailleur clearance will allow for.

To save every possible watt, we've also added CeramicSpeed bearings and DT Swiss 240 hub internals into our hub. Each 321 Disc wheel is also 2Bliss-Ready out of the box and comes with a padded wheel bag, quick-release, tubeless valve, and SwissStop Black Prince brake pads.

Designed for the most uncompromising athletes in the world, with engineering to match, the 321 Disc is the world's most advanced disc wheel for your race against the clock.


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ZIPP WHEEL 303 FIRECREST TUBELESS RB FRONT

Zipp’s 303 Firecrest Tubeless rim-brake wheelset is an all-around wheelset for a new era of road riding. It’s rich in heritage yet loaded with innovations. It’s as adept in the mountains as it is on rolling hills, windswept farm lanes, or ferocious field sprints. At Zipp, we never rest on laurels. 

This wheelset features a 19mm internal width and is tubeless ready. That means you can run lower tyre pressure for greater cornering grip and compliance with reduced rolling resistance without the risk the pinch flats. When it comes to pure speed, the 303 Firecrest Tubeless packs a serious punch. It’s lightweight with ABLC™ Sawtooth™ Technology, a complex dimpling pattern first developed for our top-level NSW wheel lineup. 

This technology helps to achieve the optimization of low aerodynamic drag and crosswind stability, which we call AeroBalance™. Zipp’s ShowStopper™ textured braking surface delivers unrivaled rim braking performance in wet or dry conditions. At the center of the 303 Firecrest Tubeless rim-brake is a new versatile and durable hubset, the German-engineered ZR1.

The model year 2021 and later Zipp 303 Firecrest rim-brake wheels are compatible with tubeless or tubeless-ready tyres, unless the tyre manufacturer specifically prohibits the use of their products on tubeless hookless (straight side) rims. Minimum compatible tyre width is 700 x 28C - No 25 / 26 / 27C tyres to be used on this wheelset. 

Zipp encourages consumers to confirm compatibility with the tyre manufacturer before installing other tubeless or tubeless-ready tyres on Zipp’s new 303 Firecrest rim-brake wheelsets. Zipp compatibility information can be found here on the SRAM Support pages.

FEATURES

  • New Zipp graphics and cosmetic identity that scream speed.
  • New ZR1 hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement.
  • Built with Sapim CX Sprint J-bend spokes.
  • Tubeless ensuring secure performance even when ridden at lower tyre pressures.
  • Versatile 45mm rim profile that’s fast, stable and versatile.
  • ABLC Sawtooth™ dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheel.
  • Showstopper™ textured brake track delivers superior modulation and shortest stopping distances in wet and dry conditions.
  • XDR™ or SRAM/Shimano driver bodies.
  • Ships with QR end caps, quick release skewers.
  • Campagnolo driver body sold separately.

Roval 321 - Rim Brake

  • Rim Type: Carbon clincher, 2Bliss Ready
  • Rim Material: Carbon
  • Braking Surface: Carbon Fibre
  • Brake Track Height: 12mm
  • Rim Depth: Solid Disc
  • Rim Width: 19mm internal, 27.3mm external (at brake track)
  • Rear Hub: Roval Disc, CeramicSpeed bearings, DT Swiss 240 internals, 11-speed
  • Assembly Method: Handmade

  • Extras: Roval padded wheel bag, Roval steel quick-release, Roval tubeless valve, SwissStop Black Prince brake pads, Roval valve pocket covers

  • Weight: 1000g

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Product features ZIPP
  • Use: Road
  • Model: 303 Firecrest® Carbon Clincher
  • Rim size: 28"
  • Tyre type: Clincher
  • Spokes: 18
  • Brake type: Rim Brake
  • Tubeless system: Yes
  • Max recommended system weight: 115kg (body weight + bike + equipment)
  • Max tire pressure: 8.62bar (125psi)
  • Rim: Zipp 303 Firecrest
  • Inner width: 19mm
  • Rim depth: 45mm
  • Hub: ZR 1
  • Valve hole: SV (6.5mm)
  • Hub axle system: 9 x 100mm QR
  • Spoke type: Sapim CX-Sprint
  • Spoke pattern: Radial
  • Nipple type: Sapim secure-loc

Material

  • Rim: Carbon
  • Hub: Aluminum
  • Spokes: Stainless steel
  • Nipples: Aluminium

Color

  • black

Weight

  • 688g (manufacturer information)