|
 |
E2 Cyclocross Monocoque Fork for 1" (25.4mm)
Characteristics:
- 1" (25.4mm) x 300mm Ahead Aluminium Steerer and
Aluminium Non Integrated Crown
- Alloy Fork Ends With Single Eyelet
- Rake 45mm
- For 700C.
- Tire Clearance 52mm
- Weight 825g average
- Clear Lacquered Finish
Retail Price from us:
£94.99 (For UK and EU
customers. Includes 17.5%
VAT).
£80.84 (Rest of World)
Price includes Worldwide
Carriage.
 |
 
has been designing and producing fork blades and steering columns for forks
since 1930, the year in which the parent company, AL Columbo, started production
of tubes for cycle frames. This background gave rise to the production of the
first fork blades of elliptical section and the first multibutted fork blades,
using Columbus' exclusive 'Reciprocating Rolling Process'.
Today, with the demand for ever greater lightness, Columbus have
replied with the CARVE,
MUSCLE and SUPER
MUSCLE, three Columbus forks which in carbon fibre, capitalize on Columbus' years of
experience of fork design.
Carbon fibre as a material is 4 times more resistant than steel
and 8 times more resistant than aluminium. Its versatility and directionality
allows Columbus designers to modulate the section and form of the fork blades to
satisfy all design criteria, without compromise or limitation. The Columbus
composite fork blades have been realized by overlapping 15 layers of T-700
aerospace carbon fibre and then covering this externally with a layer of High
Modulus Carbon fibre, which is 20% lighter and 10% more resistant than T-700.
Additionally the full carbon fork, MUSCLE, also includes a special reticular
fabric in titanium called 'Ti Mesh titanium net'. This has a considerable
damping effect on high frequency vibrations within the fork, such as those
produced by irregular ground surfaces. Super Muscle includes Kevlar and Nickel
for improved weight saving while maintaining strength and shock resistance.
 |
 |
|
|
Columbus
Minimal Fork 1" or 1 1/8" non integrated
This new
monocoque fork from Columbus is called Minimal, with
its essential and sober line, it has been developed
for traditional head sets,
particularly for steel frames, as their essential
lines don’t so well complement
integrated forks. The progressive curve
of the fork blades dampens
vibrations and guarantees great handling stability
including in extreme conditions.
Characteristics:
-
Carbon monocoque fork
-
Composition: unidirectional T700 Carbon Fibrer
-
Carbon steering column Ø 25.4 L=300 mm or 28.6 L=300mm non
integrated
-
Forged dropouts in AL 6061 T6
-
Rake: 45mm (for 1") or 50mm for (for 1 1/8")
-
MEETS THE NEW EUROPEAN SAFETY STANDARD: EN 14781
Retail Price from us:
£174.95
Price includes Worldwide
Carriage.
|
|
Picture here is of Carbon Steerer Model.
Fork Decal Design is different on Alloy Steerer Model. See Main Fork
Catalogue Page above for Picture.
|
Columbus TUSK
Light Fork
Characteristics:
- Crown in forged 6061 aluminium alloy, C.N.C. machined
- Composition: Multi Layered Carbon Fibre
-
Steering Column 28.6x300mm in Carbon
- Profiled Carbon fork blades
- Forged fork ends in 6061 alloy
- Rake 45mm
- Weight 495 g average with Carbon Steerer, 550 with Aluminium
Retail Price from us:
£106.95
Price includes Worldwide
Carriage.
Please Specify Preferred Steerer Material
Also available with Aluminium
Steering Column at £80.95 (Delivered Worldwide)
|
|
|
Columbus TUSK
Straight Fork
Characteristics:
- Carbon fibre T700/High Modulus monocoque fork
- Steering Column 28.6x300mm in Carbon
- Aluminium Reinforcement at Fork Head Crown
- Profiled Carbon fork blades
- Forged fork ends in 6061 alloy
- Rake 45mm
- Weight 400 g average
Retail Price from us:
£138.95.
Price includes Worldwide
Carriage.
|
|
|
Columbus TUSK
Mega Fork
Characteristics:
- Profiled Carbon fork blades
- Reinforced variable thickness Steering Column 28.6x300mm
AL 7075 T6 in Carbon
- Forged 6061 T6 aluminium alloy head. Oversize
50mm.
- Forged fork ends in 6061 alloy
- Rake 45mm
- Weight 590g average
Retail Price from us:
£94.95
Price includes Worldwide
Carriage.
|
|
|
Columbus TUSK
Cross
The Columbus Tusk Cross fork has been
especially design for Cyclocross Bicycles.
The 45mm diameter fork head is forged in aluminium 6061 T6, with a 1 1/8"
steering column in 7075 T6 aluminium reinforced with variable thickness. The
oversize fork blades are made in multilayered unidirectional carbon fibre and
are integrated with a CNC aluminium reinforcement on the brake pivot. The
oversize blade section makes the Tusk cross a strong and reliable fork suitable
for competition (and in accordance with the new European EN 14781 and EN 14784
standards)
Characteristics:
- Carbon fibre fork blades with variable section
- Forged 6061 T6 alloy head
- Fork blades aluminium internal reinforcement for
V brake pivot
- Reinfoced steerer with aluminium thickness.
Aluminium 7075 T6, 28.6mm, L=300mm
- Forged fork ends in 6061 alloy
- Rake 45mm
- Weight 740 g average
Retail Price from us:
£140.95
Price includes Worldwide
Carriage.
|
|
|
Columbus TUSK
Trekking Fork
The Columbus Tusk Trekking fork is the ideal
solution for demanding trekkers, requiring a performance product.
Characteristics:
- Carbon fibre blades with variable section
- Forged 6061 T6 alloy head with mudguard
clearance.
- Fork blade aluminium internal reinforcement for V
brake pivot
- Reinforced Steering column in variable thickness
AL 7075 T6. Diameter 28.6mm, L=300mm
- Forged fork ends in 6061 alloy with M5 threaded
hole for bag carrier
- Rake 45mm
- Weight 740 g average
Retail Price from us:
£142.50
Price includes Worldwide
Carriage.
|
CARVE
This is a raked fork with an aerodynamic profile, designed for
races: both time trial and triathlon. The aero shape of the fork blades has been
designed to increase the efficiency and stability of the bicycle at high speed
(> 30 mph). The side strength of the fork, thanks to the use of High Modulus
Carbon Fibre, has been maximised and this allows for both high precision
trajectories on bends and a great overall feel.
Characteristics:
- New Monocoque Single Piece Design
- Composition: T700 aerospace carbon fibre and High
Modulus carbon fibre
-
Steering Column 28.6x300mm in Carbon Ahead. Integrated head tube.
- Carbon fork blades with aerodynamic profile
- Forged fork ends in 6061 alloy with aerodynamic
profile
- Rake 45mm
- Weight 420g average
Retail Price from us:
£159.95 (Delivered Worldwide)
|
|
Columbus Super Muscle Fork 12k
Characteristics:
- Monocoque Design
- Composition: Carbon T700/High Modulus/Kevlar
Carbon Fibre
-
Steering Column 28.6x300mm in Carbon
- Profiled Carbon fork blades
- Forged fork ends in 6061 alloy
- Rake 45mm
- Made in accordance with European EN 14781
standards.
- Weight 350g average
Retail Price from us:
£209.95
Price includes Worldwide
Carriage.
|
GAP CAP:
The
clearance recovery system of the steerer has been made especially to be
able to adapt to the internal
diameter of the fork column. The length was designed to be able to involve
the entire closure area of the handlebar
stem. Thanks to a series of expanders, the hold is
greater and better distributed along the internal surface of the column.
Characteristics:
• in CNC-processed
aluminum alloy
£11.50
TESTS
Columbus carbon forks are produced in accordance with ISO 9000. All forks are
marked and their history can be traced. The tests include destruction testing
and are performed on finished product samples. They are very severe:
- Frontal and side strength test:
A load of 200 N is first applied to the frontal part and then to the side
part of the fork. The flex is measured on each occasion and this must not
exceed a set value.
- Shock Test:
A mass of 250 N is dropped from a height of 430mm on a properly restrained
fork. In order to pass the test the fork must resist without breakage or
residual deformation.
- Static Test:
A load of 200 N is applied to the frontal part for 1 minute. In order to
pass the test the fork must resist without breakage or deformation.
- Fatigue Test:
During this test an alternate force of +-600 N is applied. In order to pass
this test the fork must resist for 150,000 cycles without breaking.
|
