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Rim features:
The ROCKY KOM 28A rims close the performance gap between a carbon and an aluminum, with a low weight that's competitive with most carbon rims with these dimensions.
Our aluminum alloy is produced and drawn in Germany and wisely worked in Italy, where the rim is created by a straight bar, then subjected to the Shot Peening process which reduces the surface tensions of the material due to the processing, improving fatigue resistance and durability, and finally anodized and laser etched.
Rim features:
ROCKY KOM 28A 29er
This is built for cross country.
The asymmetric design allows to remarkably reduce the spoke tension difference between the two sides of the wheel, with a big advantage of lateral stiffness and stability.
The special inner profile makes the rim easily tubeless convertible using specific valves and tape, not included in the sales kit.
Matt black anodized aluminium 6000 T6
Aeronautic Surface Treatment (AST) eliminates surface tensions of the material, increasing the resistance.
The asymmetric design allows to remarkably reduce the spoke tension difference between the two sides of the wheel, with a big advantage of lateral stiffness and stability.
Hookles design
Suggested tubeless tape width: 29mm
Max pressure: 3.0 Bar
Tubeless ready
Height: 20mm
Width: 31mm
Internal width: 28mm
Number of spokes: 28
Hub features:
EXTRALITE HYPERBOOST3 F - HYPERLEFTY3 front / HYPERBOOST3 R rear
Front available in Boost 15x110mm or Lefty 2.0/Supermax
Rear available in Boost 12x148mm through axle
Race-proof hyper-engineered rear disc hub.
Bearing options: 440C Stainless Steel, HDC Hybrid Ceramic, XD-15 Ceramic.
ABI Stainless cartridge bearings (2 front + 4 rear)with high load capacity & low friction RS seals plus external O-ring seals.
Oversized 17mm axle with external micro- tuner.
36-60p.o.e. front-engagement freewheel with long-life polyurethane lip-seal.
Black anodized body with laser etched graphics.
Flanges for straight-pull d/b spokes: 28H
Freewheel options: Sram XD (11-12s), Shimano MTB 11s, Shimano 12s compatible (includes special locking-ring)
Bearing options: 440C Stainless Steel, HDC Hybrid Ceramic, XD-15 Ceramic.
Internationl Standard 6 holes rotor fixing
Made in Italy
Weight: from 74g + 148g
Spoke features:
Made in Italy by Alpina
Made with AISI 302 stainless steel through cold forging process.
ALPINA BLADE HYPERLITE offer a significant weight saving with no loss of resistance, stiffness of the wheel and durability of the spokes
Section: 2.0-0.9/1.6-2.0mm (bladed section is 0.9 x 1.6mm)
Black colour
Every wheelset is supplied with 3 spare spokes/nipples
Nipples: DSN ergal colour of your choice
Not supplied with quick releases
Our wheels are built by hand in house by highly specialized personnel.
The Bikeonline staff uses the best professional tools on the market into each step of the wheelbuilding process. The P&K Lie truing stand is one example, it allows us to check perfect truing through precise decimal comparators (0.1 millimeters accuracy).
We build most of the tools we use, to fit the level of our builds, which require a high accuracy.
The use of different tensiometers as Park Tool, Pillar and DT Swiss allows us to reach the correct tensions of every spokes.
Each wheel is pre-stressed by hand to ensure that nothing has been settling during the early stages of use and that the spoke tension remains constant for a long time even under very high loads
This product is to be considered produced on request / on order, due to the high customization needed. It is therefore not possible to use the right of withdrawal or the cancellation of an order already confirmed.
See "Terms and conditions of use". Advance payment is required on this product.
