Rotor 3D+ MAS 110 BCD Road Crank compact

The Rotor 3D+ MAS is a specific crank for time trial and triathlon with aerodynamic spider based on the 3D+ crank. It's being both lighter and stiffer than the 3D crank with titanium axle. The crank arms of the Rotor 3D+ MAS are made of 100% CNC machined 7055 aluminium. Additionally the arms have been trinity drilled for a further weight reduction. Because of the CNC machined and black anodized surface the 3D+ MAS featuring an attractive finish in contrast to other crank. Rotor's axle systems have been specifically developed for multiple BB systems. In addition Rotor has extended the compatibility of the 3D+ MAS, because now it's featuring an improved ultra stiff 30mm aluminium UBB axle.

The "UBB System" is not a standard. It's all standards because it allows the installation of almost any 24 or 30mm Rotor axle crank on your bike, regardless of its BB type.

Note: You will find a compatibility chart under "attachments"! Furthermore the second picture shows which spacers (not included) are necessary for your specific frame-bottom bracket combination.

Furthermore this cranks is equipped with the "MAS" (Micro Adjust Spider). This technology allows more options for a further optimized Q-Ring setup. MAS spiders have a secondary set of bolt holes that allow Q-Ring users to regulate their Q's with more accuracy by offering half increments between the normal "Optimum Chainring Position" settings.

This crank is manufactured using an improved version of Rotor´s proprietary "Trinity Drilling System" technology during manufacture. Due to the larger axle-crank contact area of a BB30 crank, all three holes can be drilled from the axle side of the crank arm, allowing further optimization of wall thicknesses. It improves both the weight and the weight-rigidity ratio of the crank arm.

The 3D+ MAS crank can be used with Rotor Q-Rings (not included in delivery) and also with any other chainrings with 110mm compact bolt circle diameter.

Precise adjustment of cup preload is achievable because of an compression ring with nut.

Q-Factor: 148mm, Chain line: 43.5mm

Features:
Material: 7055 aluminium
Weight: approx. 485 gram (at 170mm crank arm length, without BB and chainrings, manufacturer information)
Included in delivery: without bottom bracket cups, without chainrings crank, aluminium chainring bolts, spacer
Fitting for derailleur: 2x10/11-speed
Chainline: 43.5 mm
Axle profile: integrated 30mm aluminium axle
Bolt Circle: 110mm
Q-Factor: 148mm
Color: black anodized