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HomeCyclingMahle X20 light-weight e-bike drive will get lighter, smoother

Mahle X20 light-weight e-bike drive will get lighter, smoother



Mahle e-bike drive methods simply acquired considerably lighter due to the massive weight financial savings of their new, extra compact X20 hub motor. Already one of the widespread light-weight e-bike powertrains for street & gravel, the brand new X20 utterly refines & modernizes Mahle (previously eBikemotion) pedal-assist efficiency whereas changing into the “lightest e-bike drive system in the marketplace” past its improved energy:weight ratio.

Mahle X20 light-weight e-bike drive system

Mahle X20 lightweight e-bike drive system components

c. Mahle

The earlier Mahle hub motor was most likely already the commonest drive system we’d discover in light-weight street & gravel e-bikes. Combining a light-weight 250W motor within the hub of the rear wheel, balanced with a small 250W battery hidden contained in the downtube of bikes from the likes of Cannondale, GT, Orbea, Rose, Scott, Simplon, 3T, Urwahn & Wilier (to call only a current handful), it was a easy and unobtrusive resolution that always didn’t even require main modifications to these e-bikes’ analog analogues.

However now, the X20 hub is solely higher throughout.

It’s lighter, smoother, simpler to get on & off the bike, higher built-in, much less obtrusive. Apparently, it’s additionally a bit much less highly effective, giving an added good thing about longer ranges, too.

Tech particulars – What’s new?

Mahle X20 lightweight e-bike drive system schematic

The brand new full Mahle X20 system now weighs simply 3.2kg, down 300g from the X35. That’s why Mahle calls it the “lightest e-bike drive system in the marketplace”. The smaller diameter hub itself drops much more weight than that, round half a kilo down to only 1399g, now that its weight additionally doesn’t want to incorporate its axle or freehub.

These are actually each capable of be pulled out because the X20 makes use of a extra normal 12x142mm thru-axle interface, and now an interchangeable freehub physique that brings compatibility with Shimano HG, SRAM XD-R & Campagnolo N3W cassettes.

Mahle X20 lightweight e-bike drive system, BB torque & cadence sensors

Mahle has upgraded the pure experience really feel with a pair of latest sensors measuring utilized torque & cadence on the backside bracket, to extra easily ramp up pedal-assist assist to match rider enter due to good “Synthetic Intelligence” programming.

Mahle X20 lightweight e-bike drive system, hub rendering

The brand new X20 hub remains to be rated at 250W however its official toque output scales all the way down to 23Nm on the hub (from 40Nm for the X35), which Mahle says equates to a 55-60Nm toque output from a mid-drive motor because of drivetrain losses. That’s nonetheless a superb bit lower than the 85Nm of a top-tier Shimano EP8 or Bosch Efficiency Line CX motor, however extra similar to their second-tier motors or the light-weight Fazua system.

Mahle X20 lightweight e-bike drive system, hub detail

Mahle’s considering (and one we are able to agree with) is that the decrease peak torque mixed with narrower tires of street & gravel bikes and clever energy administration methods, truly delivers a a lot smoother pedal-assist with out the jerky really feel of extra highly effective methods.

The aspect good thing about decrease peak torque output is that pedal-assist vary with the identical measurement battery will increase as nicely, so you may experience your lighter e-bike farther.

2022 Wilier Filante Hybrid stealthy carbon aero road e-bike, Mahle X20 hub motor

c. Wilier

The smaller X20 rear hub motor additionally eliminates the exterior energy wiring of the x35, as an alternative including a particular dropout insert (black ingredient between rotor & body, above) with a keyed interface that robotically aligns a water-proof plug connector (with crimson seal, beneath left) once you insert the rear wheel.

2022 Wilier Filante Hybrid stealthy carbon aero road e-bike, Mahle X20 hub details

In comparison with the separate wires and bolt-on axles of the X35 hub, this may make roadside flat repairs a way more manageable affair for anybody who can function a daily QR thru-axle. An enormous improve in user-friendliness!

2022 Wilier Filante Hybrid stealthy carbon aero road e-bike, Road Bike Connection Spring, photo by Rupert Fowler, frame detail

c. Bike Connection Company, photograph by Rupert Fowler

With wired connections extra hidden inside, a smaller diameter hubshell, and a standard trying thru-axle, the brand new X20 system merely disappears into stealthy e-bikes greater than ever. Even when you already know you’re looking at an e-bike, it’s nonetheless onerous to inform.

Mahle X20 lightweight e-bike drive system, Wilier integration

c. Wilier

Mahle has added their very own new ANT+ wi-fi Pulsar One biking laptop head unit design to interface with the X20 e-bike powertrain, whereas additionally pulling in your individual exterior information from a heartrate monitor and/or energy meter for experience monitoring. In addition they have new non-obligatory E-Shifters which might enable riders to modify modes from the drops, and slimmed down their iWoc mode controller which will be built-in into the highest tube, stem, or one-piece bar like on the Wilier.

There are additionally now three battery choices to energy the X20. The usual 250Wh inside battery carries over they usually’ve added a bigger capability 350Wh inside battery for frames with extra space within the downtube, plus the exterior Vary Extender water bottle battery seems to have been scaled again to 185Wh to higher match in additional e-bikes.

Mahle X20 Availability

Mahle X20 lightweight e-bike drive system, Scott Addict eRide

c. Scott, photograph by Daniel Geiger

Thus far, we’ve already seen the brand new light-weight Mahle X20 e-bike drive system made accessible in Wilier’s endurance street Filante Hybrid & Scott’s newest Addict eRide e-bikes. We anticipate many extra light-weight street and gravel e-bikes to affix in with X20 quickly.


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