BLIZZ CRB 50-27+

Routing of cables inside the frame gives the bicycle a
modified look, and protects cables from dust and dirt.
In the long run, all of this brings precise shifting and
minimum need to do any major cleaning.

The position of the brake caliper inside the rear triangle
decreases vibrations caused by braking, and protects the
caliper from potential damage by stones.

The connection of the bottom bracket part with down
tube and chainstays is crucial for achieving maximum
stiffness. A construction element that we call Power
Transfer Point equips Rock Machine bikes with the ability
to provide riders with efficient transfer of energy from
pedals, and contributes greatly to the precise and intuitive
manoeuvrability of the bike.

Based and developed on the proven Sharkspine Tubing.
And now the Sharkspine EVO Tubing is used on our fullies
and selected hardtails, too. It works with lowest possible
position of the top tube, which results in an increase of
torsional rigidity of the frame and excellent steering and
manoeuvrability. Simultaneously, it retains its excellent
ability to absorb vibrations. The atypical edge of the top
tube, located in the front section of the frame, significantly
improves front absorption of shock from the front wheel.

The Blizzard, Blizz, and eBlizz models are equipped with
BOOST standard, a wider front and rear axle, which enables
longer span of the hub flange, thus allowing for a more
stable, stiffer and resilient wheel. The through axles of both
the front and rear wheel increase stiffness by as much as
35%, thus contributing to lightning fast acceleration.

Interchangeable drop-outs guarantee compatibility of the
frame with two most commonly used rear stay standards
– the classics with quick release, and a rear hub of
12 × 142 mm.

Construction solution that utilizes longer seatstays
increases overall stiffness of a link in a frame that is
exposed to the greatest stress. By using this solution, we
increased contact areas between the top tube and the seat
tube, and seatstays. Having joined them tightly together,
we created a construction bond that is characterized by
an increased resistance to forces created during a ride,
and eliminated the need to use horizontal reinforcement
placed between the individual seatstays.

Hydroforming enables us to optimize tubes to take into
account the uneven distribution of forces that the frame is
exposed to. Our designers and engineers can shape tubes in
such way that they have an optimum cross-section in every
single place to factor in stress in any given place.

The tapered head tube with an over-sized lower bearing of
the headset guarantees high stiffness of the front part of the
frame, durability and precise steering and manoeuvrability.