Minoura Japan – M60-D

We Minoura is the pioneer of magnetic resistance system on indoor bike trainers.
At that time, there were only two ways to generate resistance; Wind fan and Roller pressure.
Fan type was really loud even though its exponential power curve was very realistic. Roller type was very short life and 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 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 sitting position. N–N or S–S pushes, and S–N pulls. Lines of magnetic force get stronger when the magnets pull each other. At this time, the alloy rotor cuts the lines then generates the resistance power.

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.

Fluid system was originally developed by CycleOps. Its mechanism is quite simple.
A turbine with fins spins in some liquid (fluid) filled in the chamber. This system generates the resistance when the fan blades run through the fluid.

Fluid system needs to be fully sealed housing in order to avoid fluid leakage, so this mechanism should be quiet. However as a fact, most fluid units are so poor quality that they are much louder than our magnetic unit.
The disadvantages on fluid system are 1) Oil leakage and 2) Less resistance capacity control.

The basic method on fluid system how to adjust the resistance power is just changing the fluid level by moving the chamber's side wall. If the blades sink in the fluid deeper, the resistance will be greater.
However, in the real world, the fluid will not stay in the chamber as a pool once the turbine starts spin. All fluid will have to move to outer edge of the chamber like a ring, and the blades just touch the fluid even if the level is changed.
If they add more oil in the chamber to solve this problem, they will have to face oil leakage problem. As it is easily understandable, any churned liquid will have to intumesce due to the heat. It will increase the inside air pressure then finally the oil will start leaking. So they are not allowed to fill so much oil in the chamber.

As the result, the total range of resistance control on fluid system is much poorer than magnetic system.

Trainer is originally developed for building up your muscle and increasing your cardiopulmonary function to win the race, so high power is usually welcomed. It is the core target user for most trainer manufacturers.
However, on the other hand, we know there are many people who wish to use the trainer for their daily light indoor exercise in order for reducing body weight or rehabilitation. The majority of those group is women and aged people. They don't need so much power, What they really want is just smooth pedaling.
M60-D is a specially tuned model for those ordinary people.

M60-D adopts milder performance magnet which is magnetized with lower voltage. We do magnetizing by ourselves in our factory so it's easy to control.
The max power of M60-D is 250 watts at 40 km/h. It's 43% milder than standard models like M70-R or M80-R. But it's strong enough for most cases in daily exercise.

The resistance level can be chosen from 3 levels via the manual lever on the unit.
No remote control type is available on M60.

We have been adopting a plain thread type hub clamping handle for long time for clamping/releasing the bike to/from the trainer.
The large handle helped the operation so it was not so difficult, but it's true that this style has to take longer time than quick release system. And you had to keep holding the bike with another hand during this operation.

Both V-series and new M-series adopt the long-awaited quick hub clamping system on the right side (rear cog side). Just push down the lever, the coupling slides inward to catch the hub acorn nut in a second. Pull up the lever to release the coupling from the acorn nut,

Coupling distance adjustment is done by changing the left side coupling position.
The left side coupling is made of very durable single-piece solid bolt. A lock ring is built in it to fix the coupling position.

The standard setting will fit the rear hub width between 120mm and 145mm.

M60-D fits the rear hub width from 120mm to 145mm.

• 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 M60-D is 120 kgs including bike weight.
• The couplings fit the supplied quick release skewer only. You cannot use your own skewer on Minoura trainer. You must replace the skewer before use.
• Hub nut type bike should have fitting problem. The inner diameter on coupling is larger than the standard hub nut so we cannot guarantee the stability. Replace the left side coupling to the optional special one.
• Any bike with internal transmission type hub cannot be used.
• M60-D does NOT have the Foot-Step. It's the normal knob bolt style.
• M60-D is NOT compatible with Watt-Master.

Training Mat 2
A floor 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 foamed PVC 100 x 100mm pads. Just put beneath the trainer legs to reduce the vibration to the floor
Mag Riser 3
A plastic front wheel leveler block to keep the bike position level
Safe-T Net 2
100% cotton frame protection net catching salty sweat while training
Dualist 700x23c
A specially tuned road bike tire for reducing tire noise and super long life. Dual purpose for indoor training and for road. 700x23c only
Left Side Coupling Bolt
A replacement left side coupling for hub nut type bike

• SKU 400-1770-00
• Resistance Adjustability 3 levels (non-remote)
• Flywheel Weight 0.6 kgs
• Adaptable Wheel Size 24-inch – 700x40c
• Dimensions W 610 x D 410 x H 390 mm
• Leg Diameter 29mm
• Net Weight 5.9 kgs
• Max Load 120 kgs (including bike weight)
• Accessories Instructions manual, Special quick release skewer, Warranty policy card
• MSRP US$179.99
• Warranty Period 1 year (Mag unit) / 5 years (Frame)

• Instructions Manual (PDF 581KB)
• Schematics (PDF 124KB)
• Performance Data (PDF 48KB)