greg_p
100 mW
Hello all,
I'm quite new as member of ES but I am reading it since a bit - summer 2014, and commuting with it. My office was 4km through sofia antipolis (south east of france, Alpes maritime, lots of hills)...
I have a converted ebike using a Giant VT2 here:
http://www.gearreview.com/giant_vt.php
And here is what I made of... (photos are 1.5 yo)
It's been actually the worst bike to convert to... (without ignoring it was my first converted e bike
).
I have bought a 9C motor in 2806, a very Chinese 29amp controller and some controls, and he oui, a good lifepo4 60v 10ah based on 38120 cells, and the baby is 235x160x170 (mm).
The problem was: where do I put this batt?
I added a strong saddle platine with a soft bag where the baby fits. The rack is rated at 10kg, and the battery is not so far (7.5kg may be).
And some build logs-like photos:
the bar is open!
The small place inside the D.
Motor, left side:
right side
And the lumenator - yes - These guys at grin are really doing good things!
As many of you, I experienced trouble when:
-fitting the new motor wheel with disk brakes. Motor are now taking disk into account, but it wasn't the case in 2014, so I sanded the rear calliper and mounted it, and the caliper finish to sand itself on the motor
. He's been silent since a while now. I broke a spoke tightening it, which also started to make a squizzing noise, that was stronger while braking, but still going well - if we can say.
I very fast blew up the old tires with the torque and speed of the bike in the dusty tracks to go to work, which makes me take the larger tires, stronger air tubes, and filled with air and sealant to avoid flat tires... When it's the rear one that goes flat, it's not good at all: I don't commute with my 24 wrench.
So I have been pleased although I was driving it on flat road, because almost 9kg on the very rear give very strange feel past 30km/h - especially when grip is light. The Cycle analyst showed 1.8kw max pulling strong but not too fast, I don't go over 50km/h but don't really need it in comutting times. Even at 40km/h, I was frightening the mama's that walk the small dogs in the nature near the "golf de Mougins" at 8 a.m, going out of dusty curves at that speed... Fairly "awakening" activity that deserved a rest at office.
Then a month ago, the original fork just finished to serve... It was a manitou 90-120, not more available, and seals are hard to get here in France, and I wasn't very pleased with it, especially with violent stuttering when hard braking. I discover that the damper oil was missing half level, and on the spring side, the link between the 2 springs system that makes the variable setting was loose and almost impossible to repair. So I went to change it for something newer and working.
What an error...
I am a diy-one that love to over-spending times on non-existing issue (before to create it).
I bought a rockshox tk30 gold, not so expensive, and sold in a 100mm configuration, I opened it to remove the spacer that prevent full travel (120mm), and finally fit it, and dissassembling the full bike for a check.
And the question when again on the table: where to place this battery for a bit of fun... I would like to go farther, quicker with this extremely good bike (as soon as you don't put a battery on it).
That is the reason I come to you.
[*]I have seen oatnet solution that consist in fitting the battery in a hard case and fixing it to the headtubes of the fork, but I don't have a dual clamp. I have a 120mm single clamp, and fitting a 200mm dualclamp would work but raise the front very high (+8cm). Fork height goes from 475mm to 568 with common dual clamp (sram boxxer, dnm usd8). Fitting on the current fork, I have a 16cm dead between the bar and the lower BB, I can't fit a pelicase 1300 - that would be a great home for the battery. Would the 200mm dual clamp fork fit on this bike, without changing too much the balance - and how it would change it, especially with a heavy battery on the head, this is going into the unknown...
[*]I have explored another solution that would consist in splitting the 20s battery into 2x10s smaller one, buying 2 bms, may be buying 4 more celles to reach 72V (and a 40 or 60amp controller), but I am a busy man with work and children, and it will take me some time to desolder the BMS and create another, I have very few room to work on it, and I am not sure to correctly place the obtained 2 batteries (size 240x80x170). One can fit on the high tube, but I have no place in the small D (controller fits, but not much more), and under the lower tube, there is too few clearance with the tire, pedals and front gear. I can get some times to do it, but it has to be worthy.
[*]I am exploring to fit the whole batt over the main tube. It looks bulky and doesn't look very good, but it is better that on the rack, but still I have not found a way to secure it. The tube has an oval shape and I will not find a clamp that would fit.
So yes, I come with an history and questions on how would you guys do at my place, without investing too much money in a vector (I would love to) and another great frame...
Any comment and suggestion on how to manage the battery would be great!
Edit: actually I posted this thread in the wrong place. If a admin pass by here, could you relocate it on ebike section? Thx!
I'm quite new as member of ES but I am reading it since a bit - summer 2014, and commuting with it. My office was 4km through sofia antipolis (south east of france, Alpes maritime, lots of hills)...
I have a converted ebike using a Giant VT2 here:
http://www.gearreview.com/giant_vt.php
And here is what I made of... (photos are 1.5 yo)
It's been actually the worst bike to convert to... (without ignoring it was my first converted e bike
).I have bought a 9C motor in 2806, a very Chinese 29amp controller and some controls, and he oui, a good lifepo4 60v 10ah based on 38120 cells, and the baby is 235x160x170 (mm).
The problem was: where do I put this batt?
I added a strong saddle platine with a soft bag where the baby fits. The rack is rated at 10kg, and the battery is not so far (7.5kg may be).
And some build logs-like photos:
the bar is open!
The small place inside the D.
Motor, left side:
right side
And the lumenator - yes - These guys at grin are really doing good things!
As many of you, I experienced trouble when:
-fitting the new motor wheel with disk brakes. Motor are now taking disk into account, but it wasn't the case in 2014, so I sanded the rear calliper and mounted it, and the caliper finish to sand itself on the motor
. He's been silent since a while now. I broke a spoke tightening it, which also started to make a squizzing noise, that was stronger while braking, but still going well - if we can say.I very fast blew up the old tires with the torque and speed of the bike in the dusty tracks to go to work, which makes me take the larger tires, stronger air tubes, and filled with air and sealant to avoid flat tires... When it's the rear one that goes flat, it's not good at all: I don't commute with my 24 wrench.
So I have been pleased although I was driving it on flat road, because almost 9kg on the very rear give very strange feel past 30km/h - especially when grip is light. The Cycle analyst showed 1.8kw max pulling strong but not too fast, I don't go over 50km/h but don't really need it in comutting times. Even at 40km/h, I was frightening the mama's that walk the small dogs in the nature near the "golf de Mougins" at 8 a.m, going out of dusty curves at that speed... Fairly "awakening" activity that deserved a rest at office.
Then a month ago, the original fork just finished to serve... It was a manitou 90-120, not more available, and seals are hard to get here in France, and I wasn't very pleased with it, especially with violent stuttering when hard braking. I discover that the damper oil was missing half level, and on the spring side, the link between the 2 springs system that makes the variable setting was loose and almost impossible to repair. So I went to change it for something newer and working.
What an error...
I am a diy-one that love to over-spending times on non-existing issue (before to create it
).I bought a rockshox tk30 gold, not so expensive, and sold in a 100mm configuration, I opened it to remove the spacer that prevent full travel (120mm), and finally fit it, and dissassembling the full bike for a check.
And the question when again on the table: where to place this battery for a bit of fun... I would like to go farther, quicker with this extremely good bike (as soon as you don't put a battery on it).
That is the reason I come to you.
[*]I have seen oatnet solution that consist in fitting the battery in a hard case and fixing it to the headtubes of the fork, but I don't have a dual clamp. I have a 120mm single clamp, and fitting a 200mm dualclamp would work but raise the front very high (+8cm). Fork height goes from 475mm to 568 with common dual clamp (sram boxxer, dnm usd8). Fitting on the current fork, I have a 16cm dead between the bar and the lower BB, I can't fit a pelicase 1300 - that would be a great home for the battery. Would the 200mm dual clamp fork fit on this bike, without changing too much the balance - and how it would change it, especially with a heavy battery on the head, this is going into the unknown...
[*]I have explored another solution that would consist in splitting the 20s battery into 2x10s smaller one, buying 2 bms, may be buying 4 more celles to reach 72V (and a 40 or 60amp controller
), but I am a busy man with work and children, and it will take me some time to desolder the BMS and create another, I have very few room to work on it, and I am not sure to correctly place the obtained 2 batteries (size 240x80x170). One can fit on the high tube, but I have no place in the small D (controller fits, but not much more), and under the lower tube, there is too few clearance with the tire, pedals and front gear. I can get some times to do it, but it has to be worthy.[*]I am exploring to fit the whole batt over the main tube. It looks bulky and doesn't look very good, but it is better that on the rack, but still I have not found a way to secure it. The tube has an oval shape and I will not find a clamp that would fit.
So yes, I come with an history and questions on how would you guys do at my place, without investing too much money in a vector (I would love to) and another great frame...
Any comment and suggestion on how to manage the battery would be great!
Edit: actually I posted this thread in the wrong place. If a admin pass by here, could you relocate it on ebike section? Thx!
