Minoura Japan – M50

M50's main pillar is made of oval dimension steel tubing. This is for lightweight and enough durability for easier transportation. In fact, the net weight of M50-D is only 5.8 kgs that is the lightest weight trainer in the market.

The large hub handle helps you when installing the bike to the trainer. By rotating the handle, the right side coupling tube slides to catch the acorn nut of the rear wheel easily. Dismounting is also easy.

The maximum load on M50 is 120 kgs including bike weight.

M50 fits 24 - 27-inch, 650 - 700c wheels. 29-inch is not compatible.
When using 26 x 1.75" or smaller tire, you need to install the optional Z-shaped Small Wheel Adaptor between the Mag unit and the base plate.

We Minoura is the pioneer of magnetic resistance system on bike trainers.
At that time, there were only two ways to generate resistance; Wind fan and Roller contact. Fan type was really loud even though its performance was very nice. Roller type had to be worn down very quickly and completely uncontrollable.
Our patented system was really welcomed to the people in '80s who wanted quiet and smooth resistance system.

The basic mechanism of Eddy Current System is very simple.
There are two magnets facing each other, and an alloy disc is located between the magnets.
The magnets pulls or pushes each other depends on the position. N-N or S-S pushes, and S-N pulls. Line of magnetic force get stronger when the magnets pull each other. At this time, the power the alloy disc cuts the lines becomes the resistance.
One side magnet is fixed on the housing and another magnet can be rotated. By this mechanism, the resistance level can be easily controlled from low to high by changing the angle of the movable magnet.

The current unit has almost same mechanism, but each parts has been tuned up to improve the quality.

• Mag resistance unit may become HOT while workout. Do NOT touch it during and at least for 15 minutes after finishing session.
• The rear wheel spins very fast and will cause serious injury if touch them. Keep children and pets away from trainer while using.
• The maximum load of M50 is 120 kgs including bike weight.
• The couplings are specially designed to fit the supplied quick release skewer. We strongly recommend you to replace the skewer to the supplied one for using the trainer. We will not guarantee anything if you use your own skewer on M50.
• Any bike with internal transmission type hub cannot be used.
• Hub nut type bikes can fit M50.

Training Mat 2
A floor protection mat to protect the floor or carpet from scratch and stain, and reduces the vibration to the floor up to 75%
Extra Pad Set
A set of 4 soft urethane 100 x 100mm pads. Just put beneath the trainer then reduce the vibration to the floor
Mag Riser 3
A plastic front wheel leveler block to level the bike
Safe-T Net 2
100% cotton made frame protection net from salty sweat during training
Dualist 700x23c
A specially tuned road tire to reduce the tire noise and super long life. Can be used even on road

• SKU 400-1730-00 (M50-D) / 400-1740-00 (M50-R)
• Resistance Adjustability 5 levels (D) / 7 levels (R)
• Flywheel Weight 0.5 kgs
• Adaptable Wheel Size 24 - 27-inch, 650c - 700c
• Dimensions 590 x 400 x 390 mm
• Net Weight 5.8 kgs (D) / 6.0 kgs (R)
• Max Load 120 kgs (including bike weight)
• Accessories Instructions manual, Special quick release skewer, Warranty policy card
• MSRP US$169.99 (D) / US$184.99 (R)
• Warranty Period 1 year (Mag unit) / 5 years (Frame)

• Instructions Manual (PDF 448KB)
• Schematics (PDF 136KB)
• Performance Data (PDF 48KB)