Radon ZR Team 6.0 + MAC 8T

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gua_rana
100 mW
100 mW
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Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Jul 14, 2012 2:40 pm

I haven't had a bicycle for a few years. I love driving my car, but it has been bothering me to use it for short trips which could have been made by a bicycle. My car really likes gasoline, it weighs 1700+ kgs, has a 3 litre straight six and 4 gear automatic transmission. My commute isn't long, 16-17 km one way by car and 11 km by bicycle. I calculated my commute costs me almost 7 euros per day in gasoline with our ~1,7 €/l price, so I thought I could save my car from wearing and make nice savings in gasoline costs if I'd buy a bicycle.

Then I remembered what I hated. 2007, when I commuted with a 1980's road bicycle, I pedaled about as hard as I could and did the 13 km trip at an average speed of 30 kph. I had the possibility to shower at work, but that didn't help much as my body pushed sweat out for 30 minutes after. Another annoying thing is bringing second set of clothes with you.

Going slower isn't an option :twisted:, I want to minimize the time used in commuting. Somehow I found endless-sphere.com, read the board for 2-3 months sucking information and then made decisions.

First I tried to find a decent bike second hand, but couldn't find a suitable one with a 22" frame. So I bought a new hardtail. I chose this one mainly for the fork. Any cheaper bikes had lousier forks.
2012-06-20-0168.jpg
Before
2012-06-20-0168.jpg (138.17 KiB) Viewed 5236 times
For the part that gives the grin, I turned to Cellman. I bought a MAC HP 8T kit (40 A 12x 3077 FET controller, Alex DM24 rim), 7 speed cassette, CA, 16S 5P triangle battery, EV Falcon pouch and a 5 A charger.

Radon's dropout isn't ideal for fitting a torque arm
2012-07-02-0482.jpg
Dropout
2012-07-02-0482.jpg (97.74 KiB) Viewed 5236 times
First I used CAD to get the right form.

Then I took a leftover piece of 6 mm steel (S235 or S355, I think) from work and spent hours sculpting it with a hacksaw and a dremel.
2012-07-07-0720.jpg
Working...
2012-07-07-0720.jpg (89.48 KiB) Viewed 5236 times
Finally it looked like this.
2012-07-07-0746.jpg
Torque arm
2012-07-07-0746.jpg (65.49 KiB) Viewed 5236 times
This is how the bike looks now. The tyres are 2.35" Schwalbe Big Apples. A 203 mm rotor and an adapter for the rear brake should arrive next week.
2012-07-10-0785_small.jpg
After
2012-07-10-0785_small.jpg (109.98 KiB) Viewed 5236 times
Bike's weight 26 kg (I'm 195 cm 100+ kg)
55 kph WOT on flat.
21.5 Wh/km on my commute.
Takes ~2,2 kW peak. 44 A is the max current I've seen on CA.
Last edited by gua_rana on Jul 25, 2012 10:22 am, edited 2 times in total.

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Jul 14, 2012 2:57 pm

Had to try riding in the woods with my Slick Apples and front brake only 8). Some mildly abusive testing for the bike.




Edit: Video moved to youtube.
Last edited by gua_rana on Nov 03, 2012 2:39 pm, edited 1 time in total.

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zooz
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Joined: May 20, 2012 4:57 pm
Location: London, United Kingdom
Contact:

Re: Radon ZR Team 6.0 + MAC 8T

Post by zooz » Jul 14, 2012 5:55 pm

Welcome to ES!

Nice bike and very good decision to swap your car for an ebike. I did similar, I swapped my public transport (metro in particular), which is £200/month in London, to an ebike. Unfortunately it rains here in south-east England quite a bit, but some rainproof clothes and sealed connector on the bike help to be weatherproof :-)

Good luck commuting.

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veloman
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Joined: Sep 14, 2009 1:06 am
Location: Austin TX

Re: Radon ZR Team 6.0 + MAC 8T

Post by veloman » Jul 15, 2012 5:16 pm

Nice first build. Good job making the torque arms fit that frame. I bet you're liking the Mac on 2kw.
Mush! Mush you electrons! Push harder!
I offer electric powered lawn mowing service in Austin http://efficient-ventures.com/

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Jul 19, 2012 12:15 pm

I bolted the 203 mm rear rotor and adapter on on Monday. Since then my avg speed on my commute has been over 36 kph with the three speed switch set to 75%, about 41-42 kph on flat. That is a good speed to pedal (or fake pedal) along. Consumption has been 22-23 Wh/km.
veloman wrote:I bet you're liking the Mac on 2kw.
Absolutely! Everyone else who has ridden it like it too.

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Jul 25, 2012 10:37 am

New picture with the rear brake rotor mounted. I also found a nice place for the U-lock.

(Click to enlarge)
2012-07-25-1361_800pix.jpg
2012-07-25-1361_800pix.jpg (159.81 KiB) Viewed 5044 times

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Sep 05, 2012 2:14 pm

CA shows total 727 km and 30 cycles. Everything else running smooth besides the battery pack/triangle bag, which tends to move left and the crank hits it.
I guess I'll have to make something like this to stop it moving:
cage.JPG
cage.JPG (21.01 KiB) Viewed 4865 times
I have logged all my rides to an excel file. Here's a couple of graphs:
consumption_avgspd.PNG
consumption_avgspd.PNG (19.45 KiB) Viewed 4865 times
DOD_voltage.PNG
DOD_voltage.PNG (15.39 KiB) Viewed 4865 times

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Sep 27, 2012 11:20 am

It starts to get darker and darker when I'm leaving to work at the morning. I used LED-strips for making the bike more visible.
2012-09-25-3176_800pix.jpg
2012-09-25-3176_800pix.jpg (43.2 KiB) Viewed 4714 times
Front light has 54 pcs of 3028 ~6000K white leds drawing ~6 W and rear light has 12 red 3028s drawing ~2 W. They are powered by a DC/DC ($12 from eBay), which takes the battery voltage through CA's output. For the main driving light I'm planning to shorten my selfbuilt 30 W LED Mag-Lite to minimum and mount it on the handlebars. I'll have to take the power for it's DC/DC straight from the battery because of the CA's 500 mA output limit.
I also have an old Petzl Tikka mounted on my helmet.

More photos here

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Oct 27, 2012 5:57 am

A couple of videos

This is from a couple of weeks ago, going to work.




This is from last wednesday, coming back home from work.
30.4 km/h
19.4 Wh/km

litespeed
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Location: St. Charles, Missouri

Re: Radon ZR Team 6.0 + MAC 8T

Post by litespeed » Oct 27, 2012 9:22 am

Bummer on the wipe out. Cool videos though.

Tom
I'm married so you know I'm no stranger to pain!

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Nov 11, 2012 1:06 pm

Climbing up the highest hill around here, ~60 m up from the start point.


gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Sep 16, 2013 2:22 pm

2065 km on the CA, no problems so far. Mostly commuting 23 km a day.
consumption_avgspd.PNG
Consumption
consumption_avgspd.PNG (25.34 KiB) Viewed 3558 times
DOD_voltage.PNG
Voltage/DOD
DOD_voltage.PNG (31.33 KiB) Viewed 3558 times

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Jul 23, 2014 1:38 am

2945 km, still going without problems. I've only replaced one tube for the rear wheel, and now brake pads front and rear.

Made a new AVG speed record :D. Round trip ~13.5 km in suburbanish area.
20140719_112113p.jpg
20140719_112113p.jpg (116.17 KiB) Viewed 2805 times
consumption_avgspd.PNG
consumption_avgspd.PNG (32.14 KiB) Viewed 2805 times
DOD_voltage.PNG
DOD_voltage.PNG (34.73 KiB) Viewed 45 times
All time average speed 31,8 km/h
All time average consumption 17,7 Wh/km
Average trip 21,8 km
Min average speed 24,9 km/h
Max average speed 43,3 km/h (13,57 km; 25,8 Wh/km)
Longest Distance driven 42,37 km (29,7 km/h; 10,4 Wh/km)

Andytheswede
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Posts: 66
Joined: Apr 22, 2015 1:57 pm
Location: Sweden

Re: Radon ZR Team 6.0 + MAC 8T

Post by Andytheswede » Jul 13, 2015 10:53 pm

How would you prepare this bike for the winter?

gua_rana
100 mW
100 mW
Posts: 35
Joined: Jul 08, 2012 6:52 am
Location: Northern Europe

Re: Radon ZR Team 6.0 + MAC 8T

Post by gua_rana » Jul 14, 2015 12:23 pm

I never used it at winter. I'm too lazy to change spiked tyres and wear clothes warm enough. I just drove my Volvo.

I recently sold this bike to my brother, as I moved close to my workplace. My next bike will have Cromotor + max-E :twisted:

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