NEW: Gotway MSuper X MSX. 1600Wh Battery/2000W Motor

$1,090$2,100

  • Both the 84V & 100V MSX Back in Stock
  • BONUS: place your order now & receive the MSX seat for free
  • Considered by most as one of the highest-performing Cruising Wheels available today
  • Batteryless MSX also available for Customer with an existing set of 800Wh packs from the ACM/MSuper/Monster/MSX
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SKU: GW-MSX Category:

Description

Features and Overview of the Gotway MSX
Gotway MSX Background

Gotway MSX Background:
The MSX is now the fourth iteration of  Gotway’s 18″ Electric Unicycle over as many years. In the earlier 2017 model, the V3S+, was the first 84V high performance Wheel with a maximum cruising speed potential of upwards of 30MPH, a 1600Wh battery pack to provide in excess of 60 miles range, & an integrated handle. Despite being one of the highest performing Electric Unicycles then made, the first units to roll out of the factory were not without some serious design flaws, such as a control-board with a statistically high failure rate, & wiring that had a tendency to overheat. These flaws were mostly worked out quite early on in the production cycle, but the issue of the controller reliability was never truly mastered, particularly when compared to other models from the competition. The MSX set out to address the deficiencies of the early generation, one that would stand up to the test of time.

What’s New on the MSX

Gotway MSX Improvements, Larger Tire

Tire Size: Unique to the MSX, is its 19″ x 3″ tire, vs the 18″ x 2.5″ on the MSuper V3S+. The larger tire, especially the width, makes it more capable of traversing through different terrain medium like soft dirt, gravel, while providing a smoother, more comfortable ride. There is an increasing trend among manufacturers to fit use wider tires. At the extreme end of the spectrum, is the Ninebot Z10, with it’s spectacularly wide 4.1″ tire.

Gotway MSX Improvements, Higher Pedals

Pedal Height: not only is the tire 1″ larger in diameter than the previous model, but the pedal height has been increased from 5.11″/13cm to 6.5″/16.5cm. Higher pedals provide more ground clearance for ground obstacles. This also changes the dynamics of the ride, altering the center of gravity. On the plus side Customers report that it feels more stable & secure, but there is a trade-off in responsiveness & acceleration.    

Gotway MSX Improvements, TO-247

Completely New Controller Design: the most significant changes on the MSX are to be found under-the-hood, on the controller, which has has an entirely new architecture. The MOSFETs—the solid-state components that drive the motor—are using a new state of the art chop which has a theoretical max burst specification of 1000A, & up 300A for a short sustained duration. The TO-247 MOSFET package has a superior heat dissipation properties, also the heat-sinks are applied over a larger surface area for superior cooling. The result is a controller that can now provide twice the amount of sustained power over the previous type.     

Gotway MSX Improvements, Spring Connectors

Low Resistance Board Connectors: with such high currents, the motor wires & connectors must be up to the job of supporting them. On the V3S+, these motor wires were soldered directly onto the board, connected to the motor with a EC5 banana connectors. The main disadvantage of these, was that it was time-consuming & troublesome to change an innertube, where the heat-shrink insulation had to be cut opened & new ones fitted. Now the connectors are screwed directly into the board, easing routine maintenance work, while also introducing less resistance in the connector interface.

18″ Wheels, Battle of the Titans

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How does one choose between the 100V & 84V MSX? On paper the 100V has a 6.8MPH/11kph advantage over the 84V, but comes at the price off an additional $100 & a loss of 370Wh of battery capacity. Using the typical average of range estimates, a 170lb Rider cruising at 20MPH consumes around 25Wh/mile, this represents a 15 mile reduction in potential range. If you’re seeking >50 miles of range & a top speed of ~30MPH is adequate for your needs, then the 84V MSX is probably the better option. On the other hand, if you’re seeking the fastest Wheel currently being produced today, the 100V MSX may be the preferred choice. 

IMPORTANT: It should also be noted that this max speed value is NOT the recommended riding speed. There have been cases of Riders experiencing cut-out below the ‘max speed’ threshold. The programmed max speed is simply the value at which the triple-tone alert is activated from within the Gotway firmware. The capabilities of the Wheel will vary on a number of factors, such as the weight of the Rider, aggressiveness of acceleration, ambient temperature, & terrain incline. Please make sure you’re properly protected before setting off.  

Advantages:

  • Immense Power: in the top-end performance class of Wheel, the MSX retains its supremacy. That said, because of of the enormous 19″ tire, it’s designed to be a high speed cruiser, rather than providing instantaneous torque for steep gradients, or rapid acceleration as the MCM5 is.  
  • Massive Tire: the 19″ x 3″ tire provides a balance between go-anywhere capability, while keeping the total weight within a manageable package.  
  • Range: with a 1600Wh/120 cell battery pack, there ought to be ample range to cover +60 miles per charge. 
  • Controller will not over-heat: in contrast to earlier & other high-performance Wheels, the MSX will not susceptible to overheating 
  • Reliability: Gotway have historically received bad marks for component reliability, particular with the MOSFETs. The statistics in the few months with selling MSuper X could not be more different; of the 100+ MSXs sold by us to date [& the 1000+ sold worldwide] there has not be a single case [yet] of MOSFET or controller failure.   
  • Virtually silent: on nearly all other Electric Unicycles, as soon as it is powered on, the motor emits a distinctive audible whine; this can be particularly annoying to some people. The Gotway Engineers have tuned their controller motor frequency, where the characteristic motor noise emission is all but eliminated. 
  • Atmospheric LEDs: there are now four LED strips installed, two at the front & two behind. You can set the color patterns, or mode, by short-tapping the power button to one of three different themes.  

Disadvantages:

  • Retractable handle placement: one of the complaints on the MSuper V3S+, that has been retained in the MSX, is that the retractable handle is placed at the aft. This creates an intrinsic instability when trying to push the Wheel along in straight forwards direction, King Song’s center handle is a much better design. Additionally, where the screws secure the handle to the telescopic rails is not of the highest quality, there is a probability that the handle may break off in time.    
  • Shell looks/feels plasticy: although improved from the early model, with the brass anchors to secure the screws, the MSX still has a cheaper look & finish to it, when compared to other models offered by King Song, Inmotion & Ninebot.
  • Ergonomics, Wheel Width & Ride Comfort : with the pedals folded up, at the widest point is 9″, the MSX is a comparatively fat, a full 2″ wider than the similarly spec’d KS18XL. Opinion is also divided on the inward pedal bank angle of 15°, vs 10° how it was before on the V3S+. On the one hand, a stepper angle gives you a surer footing to the sides, the main downside, is that during longer rides, some owners have experienced more discomfort than on the King Song 18XL. 
  • Expensive parts: replacement spares for Gotway Wheels are on average 25% higher than those for King Song, as an example; a 19″ innertube is $35 for the MSX, vs $25 for the regular 18″ x 2.5″.

Frequently Asked Questions

  • Is it possible to purchase the Gotway MSuper X/MSX in the smaller 1300Wh capacity?
    When first released, we did offer the MSX in either the 1300Wh or 1600Wh flavours; however the demand was overwhelmingly for the 1600Wh battery. With a relative insignificant price difference, in order to achieve better economies of scale, we have now standardized on the 1600Wh battery, with Panasonic 3.5Ah GA cells, which have proven the most reliable battery cell available.
  • Will you also be offering the 100V version of the MSX?
    Perhaps, however as a value proposition, the 100V is less attractive: the price is $100 more, at $2250, & has 350Wh smaller battery pack. The only advantage of the 100V variant, is that it has a higher maximum potential speed. There are real safety considerations using a self-balancing Wheel at this speed, even with the appropriate protection (full motorcycle gear), a fall from 40MPH presents a very real risk of life-alternating injuries.
  • I have an existing Gotway ACM/MSuper V3S+, can I use the battery packs & buy a batteryless MSX to fit them in?
    Yes, we also offer the batteryless MSX for just this purpose for $1,170.
  • How water resistant is the MSX, can I use it in the rain? 
    The Wheel housing is completely enclosed, if any water that enters into the retractable handle chamber, will harmlessly drain through. For the electronics, there is an epoxy film coating applied over the control-board, this provides an additional measure to weather protection.
    Despite these design features, it is the general recommended, that it is not a good idea to attempt to use in the rain, prolonged exposure to moisture, try to avoid puddles & standing water, which may enter the motor though the axle aperture, causing corrosion to the bearings & premature wear to the internals of the motor.
  • What type of rapid-charger can I use with the MSX?
    We offer a Gotway 84.2v 5A rapid-charger, which has 3x the power output over the stock charger. More information can be found about it here: https://www.ewheels.com/product/ewheels-84-2v-rapid-chargers/
  • How difficult is it to perform maintenance work on the MSX?
    Comparatively easily, once the two side panels are removed, the internals of the Wheel exposed in just a few minutes. Changing an innertube on the MSX should take around 30 minutes, while the same operation on a Tesla, or MCM5 will require nearly twice as long. Besides the periodic tire/innertube change, it’s not expected that the other components will need servicing. We also have a warranty service-center in Tucson, Arizona, should it develop a fault & need to be sent in for repair.
Gotway MSX Image Montage

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Additional information

Weight 70 lbs
Dimensions 26 × 12 × 22 in
Voltage

84v 1600Wh, 100v 1230Wh, 84v Batteryless

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