Bicycles

Pinion combines an ebike motor and sealed gearbox in its new MGU

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The Motor.Gearbox.Unit (MGU) sits at the heart of the Pinion E-Drive System
Pinion
Several manufacturers are already including the system in their upcoming ebikes
Pinion
The Motor.Gearbox.Unit (MGU) sits at the heart of the Pinion E-Drive System
Pinion
The MGU has to be built into bikes – it can't be retrofitted
Pinion
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For 11 years now, German company Pinion's sealed mid-mount gearbox has offered a tougher alternative to derailleurs. It's now been combined with a motor, resulting in a two-in-one ebike module called the Motor.Gearbox.Unit – or MGU for short.

Serving as the main component of the new Pinion E-Drive System – and as a rival to Valeo's existing gearbox/motor unit – the MGU is located adjacent to the bottom bracket, keeping the weight low and central.

It still incorporates the company's existing gearbox, which is much less fragile than a traditional rear derailleur plus it requires very little maintenance – just an oil change once every 10,000 km (6,214 miles). It can also span several gears in a single shift, plus it's capable of shifting even when the rider isn't pedaling.

The MGU retains all that functionality, and adds an electric-assist motor to the mix. The whole module is claimed to be similar in size and weight to other mid-mount drive systems that work with external shifting components.

The MGU has to be built into bikes – it can't be retrofitted
Pinion

Bicycle manufacturers building the MGU into their bikes can choose between two models, the E1.9 and the E1.12. The former weighs about 4,000 g (8.8 lb) and offers nine gears plus a gear ratio of 568%, while the latter tips the scales at approximately 4,100 g (9 lb) and sports 12 gears plus a ratio of 600%.

Both models feature a brushless motor with up to 800 watts of peak power, that produces 85 Nm (63 lb ft) of competitive torque – up to 160 Nm (118 lb ft) at the rear wheel. Power is provided by a down-tube-integrated battery.

Several manufacturers are already including the system in their upcoming ebikes
Pinion

Utilizing a handlebar-mounted controller, riders can choose between four support levels. These include Eco for maximum range, Fly for maximum power (when desired) plus Flow and Flex which "adapt the amount of support perfectly to every riding situation and the terrain you’re facing."

The electronic shifting system incorporates features such as Pre.Select – in which the MGU automatically shifts to a gear in which pedaling can easily be resumed after coasting downhill – and Start.Select, in which the MGU automatically shifts to a preselected easy starting gear when the bike comes to a stop.

The Pinion E-Drive System should begin showing up in select bikes starting next year. There's more information in the video below.

Source: Pinion

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4 comments
NMBill
Great technology but it's gonna be costly for a while. Ultra high end.
Mark Hendricks
The problem with internal gearing always has been additional weight and friction. In this case I would add noise as well. I am a little concerned about the use of an internal belt. Belts are billed as maintenance free, but they are not. They require brushing to keep debris from cutting fibers and adjusting to keep them tight (gears wear, debris moves). Even automotive belts have tensioners (which increase friction losses).

For me and probably most commuters, all that matters little. A wide range and hill climbing torque, combined with the ability to shift at a stop is something you really miss once you've had it. City noise drowns out a lot amd we don't need a great dealnof range (can you tell I'm flipping back amd forth on this one?). The weight sure is impressive!
Username
I'm really annoyed with these mini movies product video. I want information about the product, not pictures of people and mountains and what not.
guzmanchinky
The thing I hate most on modern ebikes is the shifting and sprockets and junk. Bring it on!