Lightweight mid-drive kit for short commute

acidic

Just Joined
Jun 17, 2019
3
0
I'm very new to this, still studying. I took a ride on one of the new Uber Jump bikes on Saturday and couldn't stop grinning. It confirmed my idea of converting my hybrid, a Ridgeback Velocity. Gears are 21 speed Shamano Altus, brakes are v-brakes.

It seems to me that I'd be well-suited to a mid-drive kit - it looks simpler to learn about and install, and my use is fairly light - a 3 mile commute 3/w with a single hill. I'm 6'4" and about 78kg.

I have to lug the bike up a flight of steps so I want the lightest possible setup - I imagine that means a fairly small (bottle?) battery with short range which is fine - but are there any lightweight crank conversion kits?

TIA!
 

Woosh

Trade Member
May 19, 2012
10,814
7,828
Southend on Sea
wooshbikes.co.uk

vfr400

Esteemed Pedelecer
Jun 12, 2011
1,723
372
Basildon
You can build a much lighter bike of around 14kg if you start with a light weight road bike. You can get a reasonable one for around £200, then fit a Q100 rear hub motor from BMSbattery, a 15 amp controller from PSWPower and a 20 cell bottle battery from Aliexpress. Change the handlebars to straight ones if you want and get some trigger shifters. The whole lot would cost about £650.
 

acidic

Just Joined
Jun 17, 2019
3
0

acidic

Just Joined
Jun 17, 2019
3
0
You can build a much lighter bike of around 14kg if you start with a light weight road bike. You can get a reasonable one for around £200, then fit a Q100 rear hub motor from BMSbattery, a 15 amp controller from PSWPower and a 20 cell bottle battery from Aliexpress. Change the handlebars to straight ones if you want and get some trigger shifters. The whole lot would cost about £650.
Thanks. Yes I appreciate I could go that way, but I'm looking for a simple intro and it looks like it would involve more decisions that I would have to figure out.
 

Woosh

Trade Member
May 19, 2012
10,814
7,828
Southend on Sea
wooshbikes.co.uk
How's the reliability on the Gospade, compared to more mature units?
I don't know. I only have it for a few months. It is a new model (the first model is about 2 year old) and needs another 2 years for people to report problems.
The Bafang BBS01B and Tongsheng TSDZ2 (3.9kgs) are very reliable. Both have clocked up tens of thousands users, BBS01 hundreds of thousands.
 

Woosh

Trade Member
May 19, 2012
10,814
7,828
Southend on Sea
wooshbikes.co.uk
How much is the Gospade going to cost and when will it be on sale from?
the Gospade costs the same as the 48V TSDZ2, from woosh, £339. They were originally booked for July but the Pound is so weak at the moment, it's been postponed to September. You can get one from Aliexpress if you want to try.
 

Forty45

Just Joined
May 1, 2019
3
1
Hampshire
Thanks. Not on AliExpress, but are on Alibaba
the Gospade costs the same as the 48V TSDZ2, from woosh, £339. They were originally booked for July but the Pound is so weak at the moment, it's been postponed to September. You can get one from Aliexpress if you want to try.
Thanks. I'll wait for you to have them. I prefer your reputation for support if needed.
Will you have the full kit and battery range as on Gospade's site?
 

Woosh

Trade Member
May 19, 2012
10,814
7,828
Southend on Sea
wooshbikes.co.uk
Thanks. Not on AliExpress, but are on Alibaba


Thanks. I'll wait for you to have them. I prefer your reputation for support if needed.
Will you have the full kit and battery range as on Gospade's site?
You can use any 36V battery with the gospade. Their small bottle battery (YLBA-03) is only 36V 10AH and quite expensive.
For the same money, you can have the 36V 13AH small frog or HL battery.
http://wooshbikes.co.uk/2019/battery/smallfrog.jpg
http://wooshbikes.co.uk/2019/battery/smallfrog2.jpg
The motor Gospade makes for me has higher torque setting than their advertised model.
 

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