Cytronex Trek 7300

jerrysimon

Esteemed Pedelecer
Aug 27, 2009
3,292
112
Cambridge, UK
Its official, my kit ebike and this forum have me hooked on ebikes :eek:

I have just ended up buying a Cytronex Trek 7300 second hand for about half the cost of their new Claud Butler one. Its 18 months old, covered 1600 miles so I guess one of the first ones.

I had been looking at another DIY using a hybrid 700c bike and trying to find a Tongxin 100mm motor. It was probably going to cost me as much as this bike (if I could actually get the parts) and would require assembly with all the challenges that would bring, although I guess it would have been new. I decided in the end that getting something ready made might be better and the Cytronex assembly will almost certainly be more professional than what I could do. As I have said before my daily commute is only 10 miles return with a few gentle inclines.

I really hope the battery is ok and that Cytronex are willing to support second users :(

I also spent about an hour this afternoon reading the original thread of some 40 plus posts when these first came out. It seemed to generate a lot of discussion, some of it quite fiesty :p

Regards

Jerry
 
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AndyOfTheSouth

Esteemed Pedelecer
May 15, 2009
347
4
Congratulations! I saw that on eBay - thought it looked an interesting buy. Let us know how you get on with it.
 

jerrysimon

Esteemed Pedelecer
Aug 27, 2009
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Cambridge, UK
Yer it was cheap right up to the last 5 minutes of bidding when three of us got carried away :rolleyes:

Regards

Jerry
 

Barnowl

Esteemed Pedelecer
Sep 18, 2008
954
1
Sounds good. That must be the first Cytronex 7300 ever. I take it it's got the Cytronex bottle battery and tongxin motor rather than a Bionx version that Cytronex originally experimented with and appeared on ebay some time ago.
How many Odo miles are shown on the speedo (Trek Incite if original). Divide by 20 and that should tell you roughly how many charges it's had.

Sorry just saw 1600miles covered. So that's about 80 charges.
 
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jerrysimon

Esteemed Pedelecer
Aug 27, 2009
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112
Cambridge, UK
Sounds good. That must be the first Cytronex 7300 ever. I take it it's got the Cytronex bottle battery and tongxin motor rather than a Bionx version that Cytronex originally experimented with and appeared on ebay some time ago.
How many Odo miles are shown on the speedo (Trek Incite if original). Divide by 20 and that should tell you roughly how many charges it's had.
Yes its has the bottle battery and tongxin motor. The add said 1600 miles so that's 80 charges.

Reading all the posts I am hoping that just a good deep cycle of the battery will refresh it.

I think the seller either has or use to run a bike shop and has a lot of ebikes he has been selling off.

Reading the original thread it seemed Cytronex ran out of the Trek 7.3FX for a while and made some of these ?

Regards

Jerry
 
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flecc

Member
Oct 25, 2006
53,136
30,556
Mark at Cytronex has great belief in his fine products so I'm sure you will find the support to be good. The NiMh battery should be good for a long time yet, they don't deteriorate in the disconcertingly rapid way that lithium ones can at times.

I hope you get many miles of pleasure from your e-bike.
.
 

jerrysimon

Esteemed Pedelecer
Aug 27, 2009
3,292
112
Cambridge, UK
Did you get the Cytronex instruction?. 4 sides of A4.
Thanks for the link.

Only just won it so will be a day or two until I get it. I doubt it will come with instructions.

Regards

Jerry
 

Kenny

Esteemed Pedelecer
Jun 13, 2007
383
111
West of Scotland
Congratulations Jerry, with current prices I recon you got a good buy. I was also watching it on ebay and was almost tempted myself as no one bid till the final few minutes.

My Pro Connect S is a top bike but the cytronex bikes have always appealed to me as well. If there are any cytronex owners in the west of Scotland (I live 20 miles west of Glasgow) who would like to meet up for a cycle and bike swap please give me a PM.
 

HarryB

Esteemed Pedelecer
Jan 22, 2007
1,317
3
London
Well done. I am sure you won't be disappointed as they are great bikes. Let us know how you find it. Yes at that price much better than buying and fitting a kit.
 

Barnowl

Esteemed Pedelecer
Sep 18, 2008
954
1
Thanks for the link.

Only just won it so will be a day or two until I get it. I doubt it will come with instructions.

Regards

Jerry


No problem if it doesn't I can always copy you. Nice bike (I was very impressed with it's looks when I saw it down at Winchester when I bought my 7.3FX last year). The front suspension should be great.
 

jerrysimon

Esteemed Pedelecer
Aug 27, 2009
3,292
112
Cambridge, UK
I saw the seller was in Kidderminster so wondered if it might be one of the Onbike guys.
Very likely as the seller reffered me to them when I was asking about lighter based ebikes.

Regards

Jerry
 

Pedalo

Esteemed Pedelecer
Sep 10, 2009
443
1
You swine! ;) I wanted that bike..

I think my situation is similar to yours. My commute is slightly less at 7.5 miles each way with moderare hills and I wanted a lightweight bike (I probably would have swapped out the front forks for non-suspension to save weight). I would have bid in the last minute but by then it had already gone way past my limit! Good luck with the bike. Let us know how it works out for your journey to work. I'm very jealous!

Anyone thinking of selling a Cytronex?
 

jerrysimon

Esteemed Pedelecer
Aug 27, 2009
3,292
112
Cambridge, UK
(I probably would have swapped out the front forks for non-suspension to save weight).
Swapping out the forks has occured to me to save 1 or 2 kgs but as these wheels are thinner and some of the roads/paths are in a poor state round here I thought I would try them first.

I did a search on ebay and the price I paid is in the ballpark of another that sold recently, though that was perhaps a little newer/less milage but with a wopping 22 and 1/2 " frame.

I have been told I should receive the bike on Monday so I will report back then.

This is the 4th week of riding my kit bike in to work and I am still loving it. I may move my Alien kit to my wifes bike or keep it as spare/when I just want to throttle all the way to work :p

Regards

Jerry
 

Pedalo

Esteemed Pedelecer
Sep 10, 2009
443
1
One option I've been considering is picking up a reasonable second hand bike and retrofitting with the Alien kit. Presumably that would be a lot heavier than Cytronex but also more powerful. I'd be interested to hear how they compare.

The other option I'm looking at is the Tongxin kit being discussed in the other thread from freedom ebikes. Fitted to a good bike this could offer a very lightweight bike indeed. Nobody here has tried it yet so it's an unknown quantity but definitely one to watch.
 

AndyOfTheSouth

Esteemed Pedelecer
May 15, 2009
347
4
Hi Pedalo - I'm also thinking about the lightweight option. Frank9755 has actually done it and written it up on this forum. The thread is called 'My wife's new bike' or something similar.
 
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jerrysimon

Esteemed Pedelecer
Aug 27, 2009
3,292
112
Cambridge, UK
Yes that is where I was a week or so ago but having already built one ebike from a kit, I didn't really want to do it all again. Parts that I wanted also didn't seem to be readily available. DIY ebike building can be a bit traumatic and there is a risk in that everything might not go together well with an exisiting bike frame. It needs to be thought out carefully and problems got round. I think in my case the Alien kit was more luck when it came to fitting to my existing bike as the tolerances for the wheel fit etc were very close. It was fun in the end but having done it once this Cytronex filled the gap for what I want now.

The Alien kit really is powerfull and has started be biking again which is great. I also got it before the prices went up. As I said if it is blowy outside and I can't be bothered to pedal I know I can jump on that bike and pretty much throttle all the way to work.

I see the Cytronex as more refined and that it will probably make me pedal more.

Regards

Jerry
 
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jerrysimon

Esteemed Pedelecer
Aug 27, 2009
3,292
112
Cambridge, UK
One option I've been considering is picking up a reasonable second hand bike and retrofitting with the Alien kit. Presumably that would be a lot heavier than Cytronex but also more powerful. I'd be interested to hear how they compare.
Not sure if you read my original thread that got me started when I fitted one to my existing bike.

Definately heavier but at the same time as you state a lot more power (if you deristrict it) and a much larger and longer lasting battery.

PS Mine came out at 24 Kgs. The Cytronex Trek 7300 is about 20 Kgs, 17-18Kgs I think if you change to rigid forks.

Regards

Jerry
 
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