Varstrom (varstrom.com) has a 3.4 out of 5 rating on OK.one, based on 59 user reviews collected here. It is listed under Sports and its reputation is mixed. Opinions are polarized: 57% rate it 4 stars or higher while 27% give 1 star; The business has replied to 57% of negative reviews; Reviews mostly discuss Product, Quality, Customer service. Last updated 2026-10-24.
What reviewers say
AI generated
Most reviewers were somewhat happy with their experience overall. Consumers often find the conversion kits straightforward to install on their bicycles and genuinely appreciate the helpful customer support team whenever minor technical issues occur. Many people note that the motors perform exceptionally well, delivering a smooth, powerful, and remarkably quiet ride during their daily use.
However, some customers also noted significant communication delays and ongoing difficulties when trying to reach support teams for assistance with their orders. A few people additionally experienced frustrating problems with faulty electrical components, broken wires, or missing parts upon initial delivery of their packages.
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I have a great experience with Varstrom. I recently bought a motor and battery. I first went on Alibaba to try and get the cheapest as possible, I looked at many different sellers. It turns out that Varstrom apply roughly the same price. But with a massive lot of benefits. You don't have to wait for ages for the shipping as they have stocks in Europe (and America I think?), so I got it delivered in 3 days! A 10 days free return if you change your mind, a 1 + 2 years Warranty, and an excellent great customer support. I changed my mind about some parts, they changed them for free, then they gave me a great technical support when I had any questions. So, about 10 or 20 euros extra for all this customer sevice and Warranty, compared to buying it directly from an unknown seller in China, it's a no-brainer. It's really nice , knowing you won't be let down if any component fails one day, for 3 years...
J'ai acheté un moteur Tongsheng TSDZ8 (Order #VS2918) en avril 2025 directement sur le site de Varstrom.
J'ai tout de suite eu 2 erreurs affichées sur le compteur de vitesse (erreurs 18 et 30). Le service technique m'a demandé de débranché / rebranché les câbles. Malgré plusieurs essais, les erreurs sont toujours là.
Ils m'ont répondu qu'il fallait faire avec les erreurs !! C'est INACCEPTABLE !! Le compteur de vitesse affiche des vitesses erronées et ne me permet pas d'utiliser le moteur...
Malgré mes relances, je suis sans nouvelle de la part du service après vente depuis plus d'un mois. Il m'est impossible d'utiliser le moteur que j'ai acheté.
Je DECONSEILLE vivement d'acheter sur Varstrom car le service après vente est INEXISTANT.
Aucune garantie ou produit de remplacement ne m'a été proposé par le service après vente !!
I purchased a Tongsheng TSDZ8 motor (Order #VS2918) in April 2025 directly from the Varstrom website.
I immediately received two errors on the display (errors 18 and 30). Technical support asked me to disconnect and reconnect the cables. Despite several attempts, the errors are still there.
They told me that I had to deal with the errors!! This is UNACCEPTABLE!! The displays incorrect speeds and won't let me use the motor...
Despite my reminders, I haven't heard from customer service for over a month. I can't use the motor I purchased.
I strongly advise against purchasing from Varstrom because customer service is NON-EXISTENT.
Customer service has not offered me any warranty or replacement product!!
Reply from Varstrom2025-09-02
Good day customer,
We have response your email, the the error is the error record, the the error happening in the system.
Delivery was super quick to the UK, within 2 days from UK stock! Shame they sent the wrong wheel though… (500w rear hub instead of front hub). However after some initial issues trying to contact them (their WhatsApp number on the main page was saying invalid due to a single digit typo, so tried email but was getting no response for 4 days over the weekend). The good news is that once I found the correct WhatsApp number in the Contact Us page, response time was super quick and they sent out the correct wheel without delay for next day delivery, and they covered the return postage for the wrong wheel.
Zero customer support from the manufacturer or their supplier when you have issues. Simply ignore messages. So if you have an issue good luck you are on your own. The displays and controllers have very limited configuration if you want to change any settings. In example you cannot change the speedometer settings when it does not read the amount of motor magnets correctly.
Reply from Varstrom2025-09-02
Good day customer,
Please offer the order number and we can find out your order information. Or you can contact service@ varstrom.com for further assistance.
Received TSDZ8 2 e-bike kits from Varstrom. One kit came with a complete order. The other one had a wrong display model. The working kit works very well. Very quiet, great torque. I reached out to company on WHATSAPP and they arranged to send me a replacement display and I will send the wrong one back to them. I would give a 5 out of 5 if my order was fully correct. I’m hoping to get the display soon and I’ll update the review.
Terrible, items marked as available and shipped within 8 days, all of a sudden go out of stock, replacement solutions are then also out of stock and you find yourself much later than 8 days none the wiser if you will get your item or even a refund when cancelling (asked but not received)
Reply from Varstrom2025-06-02
Good day sir,
If you don't want to wait for the product which is out of stock. We will offer you refund, please offer you order number.
I have brought a set of bafang display and BBS02 motor they sent me something rong but I complaint and they helped me very gently and very fast I'm very happy thanks to Varstrom and I'll recommending to buy from them 😊 ☺️
Very poor service. I ordered two sets with two additional displays. When the shipment arrived, one display was missing and I immediately wrote to the company. A month later, I still haven't received the display. When they take the money, everything is fine, when there is a problem created by them, you can't find it, they don't respond or respond but don't do anything
Reply from Varstrom2025-06-02
Good day sir,
We have sent you an new display for the order.
When spending this kind of money online, one always has concerns. At each stage, Varstrom proved to be trustworthy and competent. All questions received a timely response and communicated attentiveness to the customer. The delivery time was well within the promised limits. The package arrived in very good condition and the bicycle was very nicely protected and secure. Assembly required was really the minimum one could expect. The reward for all this concern and effort is a formidable vehicle that satisfies on all the important levels. The comfort is incredible. The power is ample without being brutal. It handles very well. The gear development is close to perfect. Nothing feels or looks "cheap". It must be noted (and this is not a negative comment) that it is a very big bicycle and quite heavy. It is not at all for small riders. Overall, the closest thing to a criticism one could make is on the order of documentation. There is almost nothing instructive in the supplied manual about assembly or maintenance. Only an experienced mechanic should prepare this vehicle for the road. With that in mind, I thoroughly recommend Varstrom and the New Cola Bear (where did they get that name?) 2.0. It is very much worth more than the money.
Very good site for buying a BAFANG motor to equip an electric bike and for purchasing a new electric bike.
Very fast delivery.
Always available to advise on technical and assembly questions.
I ordered an ebike conversion kit and it arrived incomplete. I emailed Varstrom about the missing items and the representative was defensive and unhelpful. It frequently took more than a day to respond to and email and took nine days to get them to send the missing items. I had to repeat myself and send pictures multiple times. The whole interaction was just frustrating and unprofessional.
I used Varstrom twice now, 3 years ago and a week ago
The best way is to chat with them via their web chat. keeping in mind they are on HK time not UK time.
I ordered the BSS02b 750w with a 20Ah battery and it arrived 3 days after order ( 27th in the morning , 30th in the afternoon )
on my first order they replace a burned out battery connector and were always very help full
NO WARRANTY on Varstrom Europe BAFANG middrive kits
I bought two Bafang mid drive kits, with battery, from the Varstrom Europe dealer on AliExpress, in August 2024. One BBS01-350W and a BBS02-750W. Including batteries it cost me 1200 euros.
3 months after not so very intensive use, the BBS01 started showing Error 30 on the screen, intermittently. The support person of Varstrom Europe, which did not have any products in his store anymore, told me to check all connections and see if any cable was broke. So I did this several times. At some point, the screen would not turn on and my motor became useless. He still was telling me I needed to check all cables.
Finally I replaced the screen and the cable that connects to the screen. Still the screen was black. Then he told me he can SELL me a controller, which was probably broke.
I told him the motor was purchased brand new, and he should provide warranty. But he told me, if I buy a new controller, he would provide warranty. Not for the whole kit I purchased previously.
I have no way to get any support or warranty for a product I payed a lot of money for. Above all, after 3 months of use, it is broke and it can be thrown away.
The practice of Varstrom Europe, is unacceptable.
I would recommend nobody to purchase anything from this store. There are reliable other sellers, that can provide ADEQUATE support and live up to the warranty of BAFANG.
Reply from Varstrom2024-12-03
Dear customer
I am the general manager of Varstrom Europe Aliexpress. I think you may have misunderstood my team's reply. My team said that your motor reported error 30 and replaced the controller for free. In addition, your meter and 1T4 line are completely damaged as shown in the video, so my team recommends that you replace the meter and 1T4 line, and then my team will replace the controller for free. You could go to Aliexpress to reply to my team's message. My team has been actively solving problems for you and has been fulfilling warranty services. If possible, please go to Aliexpress to communicate, and my team will definitely give you a satisfactory solution.
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