Mokumono Delta S electric bike review: totally untubular

Mokumono’s electric bike is in contrast to any e-bike you’ve ever seen. Instead of a collection of tubes, the sporty Delta S is constructed from two mirrored sheets of aluminum which might be pressed into form and welded collectively by a laser-wielding robotic.

It’s a producing course of that two 20-something-year-old Dutch twins, Tom and Bob Schiller, borrowed from carmakers. Their goal is to localize the mass manufacturing of Mokumono’s bicycle frames at residence within the Netherlands as an alternative of outsourcing it to factories in China or Taiwan. Not solely does it give the brothers extra management over the meeting course of, however by sourcing as many elements as it will probably from Europe, they’re in a position to cut back the environmental waste created by delivery elements across the globe.

Mokumono’s long-term objective is to make use of solely regionally made elements. It’s an formidable and laudable goal. But first, Mokumono has to show that its very first e-bike is definitely worth the asking worth of €2,990 (about $3,499).

The title Mokumono is an amalgamation of “Mokum,” a nickname for town of Amsterdam the place the corporate is predicated, and “Mono,” for the distinctive monocoque bicycle body used on the Delta S.

Riding the pedal-assisted Delta S is quiet, clean, and cozy, because of these beefy 650cc WTB Horizon tires, Brooks Cambium C15 saddle, and Ergon GA3 grips, even on the cobbled streets of Amsterdam the place I examined the Delta S for the previous couple of weeks. I rode primarily within the most of the three pedal-assisted energy settings, which finest takes benefit of each the bike’s sporty using place and my aggressive using model.

Mokumono’s single-speed belt-driven Delta S is specced like a typical European commuter e-bike with its 250W rear-hub motor, max velocity of 25 km/h (16 mph), and a claimed vary of 60 kilometers (37 miles). But at 14.5kg (32 kilos), it’s very light-weight for a full-sized e-bike fitted with fenders, lights, and kickstand as normal. VanMoof’s comparably geared up S3, for instance, additionally made by two Dutch brothers, weighs 19kg (42 kilos).

Some of the burden financial savings is because of the comparatively tiny 250Wh battery capability discovered contained in the Delta S, fitted into the triangular house simply above the pedals. That’s half the 504Wh-capacity battery of the VanMoof S3. Nevertheless, I managed just a little over 54 km (34 miles) throughout my vary check earlier than the juice ran out, which is spectacular for such a small battery. The small capability additionally permits the battery to be recharged shortly in about two hours. The bike may be ridden with a useless battery, however it’s a heavy slog on account of that single-speed transmission.

My assessment bike was fitted with an non-compulsory Brooks cycle bag that shortly snaps onto the built-in pannier mount. With this configuration, I used to be in a position to simply bike to a neighborhood golf course, footwear within the pannier and golf equipment slung over my shoulder, for the 15-kilometer (9.3-mile) journey. Despite my look, the bike nonetheless drew extra consideration and admiring questions than my gear.


Gates belt drive and single-speed transmission.


Side-mounted show and energy button.


Aggressively styled.


Integrated lighting comes normal.

I’ve one grievance concerning the Delta S associated to energy supply from a standstill: the torque sensor’s tuning creates a slight energy delay when attempting to get off the road shortly, transferring the load to your legs as an alternative of the motor. When I first acquired the bike, the Gates belt was set for a much less highly effective rider, inflicting it to slide persistently at any time when I stomped on the pedal. After Mokumono adjusted it, it slipped much less, however the concern wasn’t eradicated. Instead of adjusting the belt, it’s my opinion that Mokumono ought to tune the facility of the Delta S to match its single-speed transmission and sporty beauty. Both the Cowboy V3 and Gogoro Eeyo 1S are examples of single-speed belt-driven bikes with 250W motors and torque sensors which might be tuned to ship energy instantly from a standstill after which help with pedaling in a really intuitive method.

Having mentioned that, I’m certain my examined vary would have been significantly much less if the motor had been powering my torque-heavy begins as an alternative of my legs. There’s all the time a trade-off.

Mokumono tells me the corporate is working to permit riders to tune the facility in an app, however the function isn’t prepared but. The Delta S is at the moment hitched to the app supplied by Hydrive, the corporate that gives the bike’s motor. But Mokumono isn’t proud of it and is at the moment creating its personal app for launch subsequent yr. I didn’t use any app in any respect throughout my testing, which is okay by me: most are horrible and add little worth.

A small management panel positioned on the right-hand facet of the body close to the top tube has an influence button that additionally means that you can set the help degree and see the remaining battery. It’s primary, however it will get the job accomplished, even when you must crane your head to see it.

Some different observations:

  • The Brooks Cambium C15 saddle that comes normal made an annoying creaking sound earlier than Mokumono took it aside and greased it.
  • The ridge created by the union of the body on the highest bar appears harmful to the crotch, however my 183cm (6-foot) body simply cleared it when standing flat-footed. The body is offered in three sizes to accommodate riders between 165cm (5 ft, 5 inches) to 195cm (6 ft, 5 inches).
  • The Magura MT4 hydraulic disc brakes cease the bike assuredly.
  • Besides silver, the Delta S is obtainable in metallic yellow. Custom colours can be found for an additional €250.
  • The battery will not be detachable for indoor charging, however it’s serviceable.
  • There’s no throttle or enhance functionality, which is to be anticipated on a bike supposed primarily for European roads.
  • Mokumono sells a GPS tracker possibility for an extra €149. It requires its personal app for now, till the function is built-in into Mokumono’s personal app deliberate for 2021.


The Delta S at residence in Amsterdam.

Mokumono acquired its begin in 2014 as a Design Academy commencement mission to make a really Dutch bike. In 2016, the brothers raised some cash to construct a typical bike by way of crowdfunding, and right here they’re in 2020 with an e-bike able to capitalize on surging demand. Right now, nevertheless, the brothers have solely offered just a few dozen e-bikes, almost all of them within the Netherlands.

Next yr, the corporate plans to introduce a second Delta C mannequin (“C” for consolation) for riders wanting a extra upright place. The firm may even be specializing in gross sales to Germany by partnering with not less than one bike store in each main German metropolis to supply check rides and repair. The firm hopes to promote between 150 and 300 e-bikes in whole in 2021.

Mokumono may be very a lot a startup. And after placing virtually 100 km on the Delta S, I can say unequivocally that Bob and Tom make a really positive electric bicycle.

True, €2,990 isn’t low-cost, however the firm doesn’t ship within the quantity required to drive that worth right down to VanMoof ranges of €1,998. But shopping for a Delta S does get you a totally specced city commuter with premium elements like a Brooks saddle, Gates Carbon belt drive, and Supernova lights. You additionally get a design that simply stands out from the pack. And in contrast to Amsterdam-based VanMoof, which simply opened a devoted manufacturing facility in Taiwan, Mokumono’s founders are dedicated to bringing bicycle manufacturing again to Europe. And massive goals like that must be value one thing.

Photography by Thomas Ricker / The Verge

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