DIY e-bike builders are a crazy bunch – I’ve been doing it for a living for nearly three years and I still have to question my sanity sometimes! If you are thinking of taking the plunge and building your own e-bike, I have posted a selection of honest ‘warts and all’ reviews and comparisons on some of the best electric bike conversion kits currently available.
I have extensive knowledge of all the kits reviewed here, and have personally installed nearly two hundred electric bike kits through my career.
I will be focusing primarily on the popular Bafang and Tongsheng mid-drive systems, and will also be adding detailed reviews of the 250w – 1000w front and rear wheel hub motor kits. See my article on the top 5 best electric bike kits for 2019 This article also includes a buyers guide on choosing the best conversion kit for your particular needs.
If you are looking to build an insanely quick e-bike, there are also plenty of excellent kits available. I have compiled a shortlist of some of the best selling fast electric bike kits currently on offer.
Why a conversion kit and not a ready built e-bike?
An electric bike conversion kit can be a cost effective way to transform your bike into an e-bike. In my article electric bike vs conversion kit I will go over the pros and cons of buying a factory built e-bike versus converting a bicycle you already own.
If you are bothered about the e-bike laws in your country it would be worth checking out the legality of your planned build before choosing a motor kit. Different countries have different laws relating to electrically assisted bicycles. UK and EU electric bike laws differ from the USA and Canada.
You will also need to find the right lithium battery pack to go with your conversion. My article explaining the basics behind electric bike batteries can be found here.
Is converting a bicycle to electric assist easy or difficult?
Different bikes can throw up different challenges, but I would say on the whole, most electric bike conversions are fairly straightforward. You will certainly need a degree of mechanical knowledge (and patience) in order to do the job properly. I have been doing it for nearly three years, and I still make mistakes from time to time!
Make sure you have the right tools for the job. There is nothing more frustrating, than making a start only to find you have to pop out to your local bike shop for a spanner or socket. I would also recommend getting a bike stand.
Choose your donor bike wisely
Personally I would go for something like a hardtail mountain bike or a hybrid. Ideally, something that isn’t too fancy and hasn’t got a pressed fit bottom bracket (a right pain if you are going to fit a mid-drive motor).
If you are fitting a front or rear wheel hub motor, you will need to make sure your bike hasn’t got thru-axles, as you will not be able to install the motor wheel.
All the kits reviewed in this section are from well established brands . I will offer you my own personal opinion on each motor, and will not just promote the good points but will also make you aware of the bad points and any reliability issues.
Ultimately, I want you to make the right choice. Building your own electric bike can be fun and rewarding, but it can also be a right pain, if things don’t go to plan.
The good news is, there are loads of videos on YouTube detailing how to fit these kit. I will be posting an article on installation in the near future.
If you need any help or advice, please feel free to use the contact form at the bottom of this age and I will get back to you within 24hrs.
Check out the table below for links to the cheapest place to buy electric bikes conversion kits with global shipping
|Bafang BBS01B 250w mid-drive kit with choice of 36v batteries - International Shipping
|Bafang BBS02B 36v 500w mid-drive kit - International Shipping
|Bafang BBS02B 750w mid-drive kit with choice of 48v or 52v batteries - International Shipping
|Bafang BBSHD 1000w mid-drive kit with choice of 48v or 52v batteries - International Shipping
|Tongsheng TSDZ2 250w / 350w / 500w 36v or 48v - International Shipping
|GP-LB01 mid-drive motor 250w / 350w / 500w 36v or 48v - International Shipping
|Electric Bike Batteries - 36v / 48v / 52v / 72v - International Shipping
The kits listed below are capable of producing an insane amount of power, make sure your bike is up to the job. Some of these kits can also be used to electrify a small motorcycle.