Merit Professor Bikepacking RacE Bike

We are back, after many years, with a full carbon MTB. We called it Professor, the same as our first successful model. As you may know, many of our ambasadors and friends are bikepacking racers. This model is designed for them. Fast, stiff, cross country, marathon bike ready for bikepacking. When you ride Professor you can feel free spirit of bikepacking racing, inhaled to our bike brand mainly thru our friend Štěpán - Wolf Man. The vision is not only of winning races, but mainly about the whole lifestyle and the freedom of mind. Crushing the borders not by using doping, but through strong mindset and natural food. 


We use best possible functional parts for best possible performance, there is not neccessary to change parts just after bike purchase. All is tested before on us. 

For over 50 years, Ritchey has lead the industry in providing race-worthy, expedition ready, and championship proven components and bicycles at a price that does not require a pro contract. Shop innovative design, iconic framesets and timeless quality from Ritchey Design. 

High end bike parts made in Germany. 
Design, testing, manufacture, sales & service in house. The company is driven by a staff of bike enthusiasts with a solid proven technical background. This allows us to design and produce all our products directly in our own manufacturing facilities. 

The Fulcrum® range of road bike wheels offers lightweight and reliable wheelsets for every condition, course, discipline and budget. From the professional level full carbon aero wheels, to the high performance aluminium line, Fulcrum® has the perfect wheel to match your performance. 

Frame Details and Features

Many mounting points
You can find on frame threads prepared for additional bottle cages, bags, fenders, racks or other tools for bike packing or all season riding.

Bottom bracket
Simple, precise and most reliable pressfit BB shell. We do not agree that inserted alloy thread to carbon frame is the best solution. This material connection can cause irreversible frame failure. 

Tappered Headset
The headset is 1 1/8'' at the top and 1 1/2'' at the bottom. Thinner top saves weight while thicker bottom makes steering more stable. 

Internal Cable Routing
We hide all shifting and brake cables inside – hidden routing looks great and guarantee top functionality for shifting. All is hidden against mud and dust. 

Fat Tire Clearance
For maximum comfort during off road ride. Frame allows to use 29x2.4" tires.

Overall Stiffness and Wheel Axles
Most stressed parts of the frame are robust to keep the ideal frame stiffness. Rear dropout is equipped by 12x148mm axle. Front fork with 15x110mm.

Bike Frame Specification

BB Standard

Pressfit BB92

Headset Standard

1 1/2" and 1 1/8" 45°

Frame Max Tire Clearance w/o fender

29 x 2.4"

Seat Post Diameter

31,6 mm

Seat clamp diameter

34,9 mm

Brake mount rear

Post Mount

Rotor clearance rear

160 mm

Maximum chainring 

Max. 1 x 34T (CL=51,8mm)

Front through axle

12 mm x 110 mm

Rear through axle

12 mm x 148 mm

Front Derailleur Hanger

No please


11x + 2x on fork

Fender Mounts


Rack Mounts



1,09 kg (size: M)

Frame Geometry

Frame Geometry (mm)

XS 390 552 425 75 45 650 90 75 69 1 1/8'' 1 1/2''
S 430 575 425 75 45 672 90 75 69 1 1/8'' 1 1/2''
M 470 596 425 75 45 694 95 75 69 1 1/8'' 1 1/2''
L 510 620 425 75 45 720 110 75 69 1 1/8'' 1 1/2''

 Recommender Bike Size (cm)

RIDER HEIGHT (cm) 150-159 158-166 165-178 177-190