R.X275 ULTRA
The Athlete
The track athlete uses impulsive power at the start. They use their energy evenly on the trail. What counts is the best time, the increase in performance. With the R.X275, we have created a whole new category of bike for this purpose. It is a lightweight trail bike with eAssist. You provide the power, your cadence drives you forward. When the hurdles come, you get support intuitively.
Boost Button
We positioned the Boost button perfectly on the handlebar and integrated it harmoniously into the cockpit. Press it for a maximum of 30 seconds and it delivers up to 300 watts of extra power. For the obstacles, for sprinting out of the curve, for the climb on the trail. Until you need it again. The rest is controlled continuously by the eAssist.
Short Travel Kinematics
The short travel kinematics with 130 mm travel in the front and 120 mm in the rear make the handling agile and provide grip on any surface. The new Linkage is light, very compact and impresses with high stiffness. We have precisely calculated the spring characteristic curve of the rear triangle in simulations and matched them with field test experiences.
Integrated Display
We took the display out of direct view. It is integrated in the center of the top tube. Here you will find the most important information and data. All performance settings are made in the app for your mobile device. Changing modes on the handlebars while riding - that's not the way to ride your R.X275.
Motor
HPR stands for harmonic pin-ring gear. The absence of conventional gears and belts saves weight and enables the compact design around the bottom bracket area. It offers you up to a maximum of 50 Nm of torque and weighs 1,850 g.
High Modulus Carbon
The frame of the R.X275 is made of full carbon from high-modulus fibre. It is handmade from around 580 carbon cutting pieces and weighs 1,893 g as a raw frame. This offers higher stiffness values with absolutely optimised weight.
Rear Suspension
The rear triangle is stiff, but at the same time highly dynamic. By using flexible carbon seat stays, we can do without additional rear stay bearings and thus save additional weight. With the 437mm chain stays we create compactness in the rear triangle.
Integrated Cockpit
Handlebar and stem of the R.X275 merge into one sleek unit. We call that the ROTWILD Integrated Cockpit (RIC). Made entirely out of carbon, it is particularly light. We reduce clamps, screws and connections and achieve maximum control and power transmission.
Configuration R.X275 ULTRA
Rear Shock
FOX Float DPS Factory Kashima
Headset
ACROS RW375 1.5
Fork
FOX 34 Float Factory Kashima
Handlebar
ROTWILD RIC280 Carbon
Stem
ROTWILD RIC280 Carbon
Display
TQ Center
Seat post
FOX Transfer SL Factory Kashima
Saddle
ERGON SM Pro Carbon
Grips
ERGON GD10
Motor
TQ HPR50 - Boost Button
Battery
IPU275
Charger
TQ - 4 A
Crankset
e*thirteen Race Carbon
Chainring
e*thirteen Direct Mount Chainring
Chain guide
e*thirteen TRS
Rear Shifter
SHIMANO XTR 9100
Rear derailleur
SHIMANO XTR 9100 SGS
Chain
SHIMANO HG 7100
Cassette
SHIMANO CS 9100
Front Brake
SHIMANO XTR 9100
Front Brake Rotor
SHIMANO RT-MT900
Rear Brake
SHIMANO XTR 9110
Rear Brake Rotor
SHIMANO RT-MT910
Front Wheel
DT SWISS HXC1501 LS Spline1 Carbon
Rear Wheel
DT SWISS HXC1501 LS Spline1 Carbon
Front Tire
SCHWALBE Nobby Nic Evo
Rear Tire
SCHWALBE Wicked Will Evo
Errors and omissions excepted.
Geometry
Magazine
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