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Twitter's VS7.0-ER Dirty Electric Bike Review

The inner perfectionist of the author of the previous reviews did not allow photographing “dusty” bicycles, which could give the impression that nobody had ridden them and the review was written “from pictures from the Internet”. No, no, no, and no again: we ride on everything, “both to the tail and to the mane” - on asphalt and sand, in heat and rain, with dust and falls - only this way you can “feel” the piece of iron and form an impression about it .



Today there will be a dirty review of one of the most affordable electric bikes of Twitter (no, not the same one) - VS7.0-ER (do not immediately remember the name of the model). Let's enjoy!

Reviews of any alternative vehicle traditionally begin with the thickening of clouds that all other means of transportation are terrible. We will not make exceptions :)
')
In large cities (especially in Moscow), the car is increasingly turning from a vehicle into luxury: gasoline, traffic jams, parking, taxes, thousands of fines. But it is difficult to refuse a personal car - each of us has situations when neither taxi nor car-sharing will replace it. Metro, buses, trams ... yes, everything is fine, but often you need to get to the same metro, and public transport is tightly tied to routes and not always convenient.

Scooters, mono-rollers, rollers? Yes, it is compact, maneuverable and economical, but all this is convenient only at short distances - it is obviously inconvenient to go from the Moscow region to the center on rollers / mono-wheel. No matter if it’s an electric bike, I sat down and went: at least 20 km, at least 50, you want to be driven by a motor, you want to drag it by force of two, you don’t have to carry it. Well, plus the health benefits and shape. Anyway, summer is made for the bike. What you need?

The lineup


In the model range of the VS7.0 line, there are already three versions of electric jets : VS7.0-ER100 , VS7.0-ER and VS7.0-EM . Visually, they look almost the same, but only one letter / tsiferka significantly affects both the characteristics and the price. We have already briefly told about this in the summary publication , but it will not be a sin to repeat it.

VS7.0-ER100
VS7.0-ER
VS7.0-EM


Appearance


Today there will be no pictures without dust particles, to the comments “how can a bike be done like that!” We are ready. Moreover - we plan to make a separate publication about the maintenance of the bicycle using the example of a clever two-suspension (which most of all got under the distribution) - would it be interesting to read? Write in the comments your questions.



Bicycle starts with a frame. In the VS7.0-ER, this is a typical aluminum (6061) triangle with a size of 17 "- 15-inch version (like, for example, the Mantis line) or some other one here. The upper and lower frame tubes have a slightly" triangular "section, while the seat tube is round, and accurate seamless welding is used, which adds points to the appearance of the bicycle.



But what removes the points is the controller unit located under the bottom of the frame - it looks somewhat cumbersome and unusual, in the models from the previous review all the electronics were hidden either in the battery (in the Mantis series models) or in the frame itself (as in carbon TW -E9L ). But there are advantages to this - it will be easier to maintain such a unit (in which case) than picking the same frame. On the go, this box also does not interfere in any way - it is not a low point and does not touch anything.



The bicycle battery is located on the lower tube of the frame - it is removable (fitted on the guide), with a mechanical anti-theft lock (2 keys included) and with a charge indicator (there is a separate button for this).



And he also has a rubberized plug, under which are located the USB connector for charging devices, a connector for charging the battery itself, and a button for its hardware shutdown.


The USB connector turns the bike into a large power bank: if you want, charge the smartphone (the same trackers pretty quickly recharge the charge of the smartphone), if you want, a column (which there’s already nowhere to hook), you want a flashlight. Y is convenient.

The battery capacity is 480 W · h (48 V, 10 A · h). Inside - lithium-ion elements of the company LG (judging by the name of the model, CBT-13S3P, there are 13 consecutive blocks of 3 parallel elements 18650) - the manufacturer claims up to 120 km on one charge in the mode of assistance.

Many, few? How many trips do you drive 120 km?

In the front cassette three stars, behind - 9, a total of 27 speeds. Once again you will write that not all of them can go for a long time, but you can’t push it against mathematics - 3 by 9 equals 27 :) Cassette - SUGEK-9S (11-34T), choosing a comfortable driving mode is not a problem.



As mentioned above, the Shimano Altus set (more precisely, the M370) is responsible for switching speeds - an inexpensive and relatively high-quality switch designed for MTB at the primary and secondary levels.





The manufacturer calls the switch design low-profile (such as a frame pressed closer to the stars of the cassette - for better switching, less resistance and so that the hair was smooth and silky), as well as increased resistance to dirt. Checked on several long and "dirty" trips - normal flight. There is a cable tension regulator for fine adjustment.


Chain YBN-9S

Brakes - disc mechanical. Shimano Tourney TX is suitable for Altus, simple and unpretentious, with perforated discs and rather large pads.







By the way, yes, the wheels are 26-inch, with a Retrospec rim (as in previous models, almost all of the accessories are from this brand) and KENDA-1187 tires (26 "× 1.95"). The same tires were in more MTB-shny models, for example, on Twitter Mantis - nothing has changed since the last reviews, they are still as comfortable to drive around the city as well as off-road.





A brushless electric motor (gearmotor-wheel) with marking 48V350W18054609 is built into the rear wheel. I'm certainly not a doctor, but there is a feeling that it is designed for a voltage of 48 V, and the power is 350 watts. What the technical characteristics confirm :) The reducer has a free-wheel clutch (in order not to expend energy when riding a muscular strain). About impressions from riding on this little engine - a little later.





The seatpost allows you to adjust the height of the seat (comfortable eccentric) in a fairly large range - from “bmx-style” to “for a special project ” :) The seat of eco-leather, comfortable, does not rub at long distances.



Included are two reflectors: one just under the saddle, the second - on the steering wheel.



The rods and pedals from Retrospec - more than once such met, no complaints. Also, the bike is equipped with a step, installed on the rear left feather - so that the bike can be beautifully put and inform the social network of the next trip.





The front wheel has a suspension fork with the possibility of its blocking (manual) and the preload setting (the position of the fork in the state of static load). The stroke is about 100 mm. There is no rear shock absorber - we have an inexpensive hardtail for the city and parks :) But it is worth paying tribute, riding even with one shock absorber is quite comfortable.







So what else is left of what is not looked? And the most interesting! Steering and body kit on it!

The wheel is the most common MTB-shny (from Retrospec), on a small offset.





Along the edges there are rubberized grips, which 1) differ from those that appear on the site 2) are not very comfortable on long journeys and dirt gets clogged in them 3) can be changed at any time.

Next to the handles, there are shifters of speeds (on the left - front ones, on the right - rear ones): I really liked how they work, but speed markings seemed a bit strange - only boundary values ​​were marked (1 - 3, 1 - 9). Although if you are not the first time behind the wheel, then the indicators will not pay attention.



There are also brake handles. Initially, they are not very conveniently exposed, I had to turn / twist them “for myself”.



Well, as a cherry on the cake: on the left of the handle is the on-board computer, and on the right is a petal for turning on electromotive magic. Both are conveniently located, although the on-board computer looks more familiar (and more comfortable for reading information) in the central part of the steering wheel. If in the same Mantis the on-board computer was separate from the engine control buttons, then here they are combined in one device with three buttons: “M” (on / off) and “reduce / increase” power.





Cable management ... well, to some extent it is present: part of the wires goes inside the frame (brake cables), part is attached with ties.





There are more wires than usual - additional ones ensure the presence of a “scooter” mode - from the brake to the motor, so that the motor does not continue to work when braking. When there are so many wires, it is hardly possible to organize everything neatly for reasonable money. The most "terrible" is not in sight, but from below (but also not critical):



With the look of everything. We pull all eccentrics (on wheels, at the saddle), screws ... and go!

Tests


If it were not for the motor and the battery, then Twitter VS7.0-ER was an average bicycle, but it would not be so interesting and appropriate (on Habré) - you can pedal on any bike. But it is worth pressing two buttons ... and two new modes will be added to the mode of driving on muscular burden : the mode of assisting (when the motor helps to pedal) and the cheater mode of the scooter (when the bike carries you and you relax).

First of all, we charge the battery - for this, a charger (54.6 V, 2 A), khm, with a fan is included with the bike. Well, ok, let it buzz - less likely that the filling will melt. A full charge cycle is 5-6 hours - long, but this lasts a long time, that is, you will not have to charge the bike every day. As a paverbank for 20,000 in the depths of a backpack :)

To call the electric assistance, press the red button under the rubber cover on the battery (which you can not turn off at all, except during long periods of inactivity - for example, in winter). And then - hold down the "M" button on the on-board computer. The screen will immediately light up, but the “power reserve” in kilometers will not appear on it - instead of it, the battery charge in%. As well as mileage (for the trip or for all time) and the current level of assistance of the electric motor. Levels five - 0 (does not help) and from 1 to 5 (it is regulated by the buttons "+" and "-" on the panel). The higher the level, the more the motor will help with each pedal rotation (which in the area of ​​the carriage is monitored by the PAS; pedal sensor): if you still have to sweat on the “one”, then you can go to “5” even on the hill for the most “heavy stars” playfully rest. During the assistance is not very loud, but the hum. There is also a “pedestrian mode” - we hold down “-” and the bike will help to drive it (useful when climbing uphill).

During the test, the VS7.0-ER really enjoyed driving in all three modes:


The brakes showed themselves exceptionally well, but soon a creak appeared in the front wheel - it was removed by adjusting the brake disc.

Information from the screen is read in any weather (even in bright sun, unlike a computer in TW-E9L) and even in the dark (due to backlighting), but, as I wrote above, in the central part of the steering wheel it would look “more convenient” .

Two things that did not like:


For the rest - exceptionally pleasant is great, with a no less pleasant ratio "price / quality".



Technical specifications Twitter VS7.0-ER


Size of wheels: 26 "
Frame Size: 17.0 "
Color of the bicycle: Black-red / black-yellow / white-red
Bicycle weight: 19.8 kg
Frame: Aluminum alloy 6061
Steering wheel: Aluminum alloy with matte finish
Plug: Retrospec, with manual locking
Steering column: Aluminum alloy, CNC 44 mm
Gear Levers: Shimano Altus, 27 Speed
Front gear shift: Shimano Altus
Rear gear selector: Shimano Altus
Rods: Aluminum alloy, square hole, 22-32-44T
Cassette: SUGEK-9S, 11-34T
Chain: YBN-9S
Carriage: KENLI, square holes, bearing BB68
Brakes: Shimano Tourney, mechanical disc
Bushings: RS, aluminum alloy, 2-bearing, for disc brakes
Rims: Retrospec RS300, aluminum alloy, double pistoned
Spokes: SHUNJIU, ruggedized
Tires: KENDA-1187, 26 "× 1.95"
Handles: Retrospec
Saddle: Retrospec
Pedals: Retrospec CNC, for mountain bikes, on bearings, aluminum alloy
Usage modes: 3 modes
Help Modes: 5 Modes
Mileage on a single charge: 40 km (in scooter mode), up to 120 km (in help mode)
Maximum speed: Up to 35 km / h
Maximum user weight: 120 kg
Battery: LG-18650 lithium-ion, 48 V, 10 Ah
USB port for charging gadgets
Full charge time: 5-6 hours
Number of recharge cycles: 800-1000 times
Motor: Rear motor-wheel, 48 V, 350 W
Brushless DC motor with reduced noise
Maximum torque: 60 N · m
Controller: 5 modes of use
Monitor: LCD display
Monitor features: Speed, mileage, charge level, mode, etc.
The parameters you can set are: Reset mileage, wheel size, etc.



Yes, by the way - Twitter VS7.0-ER is available in three colors: black and red (as in the review), black and green, and white and red. The price of all the same - $ 64,990 .

Read also reviews on other electric bikes:

- Twitter Mantis-E0
- Twitter Mantis E-1
- Twitter TW-E9L
- Airwheel R8

Source: https://habr.com/ru/post/458350/


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