• -9.57%
ROCKY KOM 28A 29er / Extralite Hyper3 aluminium MTB wheelset 1.320g
ROCKY KOM 28A BERD 29er / Extralite Hyper3...
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A 29er / Extralite Hyper3 aluminium MTB wheelset 1.320g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g
ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g

ROCKY KOM 28A BERD 29er / Extralite Hyper3 aluminium MTB wheelset 1.235g

The ROCKY KOM 28A rims are produced using an aerospace aluminum alloy 20% more resistant and more rigid than the best aluminum alloy used for rims.
This allows to obtain lighter rims, with superior mechanical characteristics.

Rims: ROCKY KOM 28A 29er, internal width 28mm, 430g.
Hubs: Extralite HyperBoost3: 74g + 148g.
Spokes: Berd Polylight
Nipples: DSN ergal.
Number of spokes: 28/28
 
Maximum bike system weight: 115kg (rider, bike, clothes and possibly luggage)

Wheelset weight: 1.235g. (Berd Polylight spokes).

The sales kit includes:
- ROCKY KOM 28A 29er / Extralite Hyper3
- 2 Berd Polylight spokes.
- 2 spare DSN nipples.
- Tubeless tape installed.
- Barbieri Carbonaria valves installed.

REAR WHEEL DISH
  • Standard
NIPPLE COLOUR
  • Black
BEARINGS
  • ABI Stainless
OPZIONI CORPETTO
FRONT HUB STANDARD
  • Boost 15x110mm
REAR HUB STANDARD
  • Boost 12x148mm
READY TO SHIP
€1,549.18 €1,713.11 -9.57%

Product Options
REAR WHEEL DISH
 
Cannondale AI
 
Standard
NIPPLE COLOUR
 
 
Orange
 
 
Silver
 
 
Blue
 
 
Black
 
 
Gold
 
 
Red
 
 
Acid Green
 
 
Purple
BEARINGS
 
ABI Stainless
 
HDC Ceramic
[Add €179.47]
 
XD-15 Ceramic
[Add €542.94]
FRONT HUB STANDARD
 
Boost 15x110mm
 
Lefty 2.0 / Ocho
REAR HUB STANDARD
 
Boost 12x148mm
OPZIONI CORPETTO
 
Shimano 12s compatible (36 p.o.e)
[Add €26.29]
 
Shimano 12s compatible (48 p.o.e)
[Add €35.35]
 
Shimano MTB 11s (36 p.o.e)
 
Sram XD Drive (36 p.o.e)
 
Sram XD Drive (48 p.o.e)
[Add €13.60]
  
  Quantity:

Description

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
Weight: 430g


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:
BERD POLYLIGHT SPOKES
Berd spokes are made from an advanced polymer called ultra high molecular weight polyethylene (UHMWPE) that has 12 times the strength-to-weight ratio of steel and floats on water. Berd spokes have an improved fatigue life compared to steel and are impervious to the elements.
Berd spokes use 14 gauge threads to connect to standard nipples the same way metal spokes do. Opposite the threads is a loop, which is pulled through the hub hole and secured with a rod. Berd spokes feature a 1.8mm diameter in the mid-span and are 2.5 grams per spoke.
Advantages of BERD PolyLight spokes:
- the weight of 2.5g allows to save almost 70/80 grams compared to the Alpina HyperLite spokes, that are the lightest steel spokes available on the market
- 12 times the strength-to-weight ratio of steel
- Berd spokes also damp vibrations much more effectively than steel spokes. This results in a more comfortable, smoother, ride. Berd spokes provide 200% better vibration damping than metal spokes.
The UCI, which regulates professional cycling, has specifically approved Berd spokes, so you can race Berd spokes from local crits to the Tour de France.
Made in USA

Every wheelset is supplied with 2 spare spokes/nipples

Nipples: DSN ergal
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.

Product Details

Product Details

RIM HEIGHT
20mm
RIM DIAMETER
29"
INTERNAL WIDTH
28mm
WIDTH
31mm
MATERIAL RIM
Alluminio
SPOKES MODEL
Berd Polylight
WEIGHT PAIR
1.20 kg - 1.30 kg
RIM MANUFACTURE
ROCKY
HUB MANUFACTURE
Extralite
RIM TYPE
Tubeless Ready
TYPE OF WHEELS
XC / Marathon
ROCWHE2205192
2000000000000
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