panurge
10 kW
Hi Guys
In this thread I will share photo and vids about the evolution and future rides of my first E-bike. This build can be considered ended.
Since My buildthread ( http://endless-sphere.com/forums/viewtopic.php?t=25101 ) started 2 years ago is a bit confused I will resume the basics of the project:
Started the thread to design and prototype a dedicated Onion frame for an High powered Downhill E-Bike, two beautifull designs sorted out from the projecting phase. 1 for 72 to 144 18650 cells and another for up to 8x5Ah Lipo Bricks, both with a non welded modular frame fully adjustable.
Unfortunately at a certain point, I have abandoned the dedicated frame project, there was a lot of reasons like the lack of time due to too much projects working on, and 2 kids arrived in the last 2 years and half, plus a bad tax/financial conjuncture here in Italy that makes everything about production a nightmare.
So I decided in the meantime to first convert an existing frame, that was a prototype studio for the final MP5 production (maybe 15 pieces in total). It's the actual donor frame, and although It seems to be projected for electrics, it was not.
BIKE: Onion MP5 Studio Prototype with welded swingarm 260 or 240 rear shock lenght, 7° head adjust, 6 position BB adjusts.
WHEELS: front DTH 2.3 26" tire on a Custom Titanium hub; 24"x2.5 hookworm rear on a DMR revolver hub. for offroad I used a 26" WTB 2.5 DH tire front and a 24x2.6 halo ception rear, I'm looking for alternatives like Arrow's wide bite or DURO Wildlife, once I stareted with the Gravity world there was a lot of Gazzaloddi tires they was heavy but bombproof, unfortuantely out of production....and maybe a bit wide touching my left chain....
BRAKES Gustav M
MOTOR: Astro 32204t 3/8 shaft
DRIVE: Recumpence's DaVinci drive, 5:1 belt reduction with 1/2 Ti shaft, sliding tensioner and WI 16t output Freewheel, left chainring has 61t for a 19:1 total reduction.
ESC: CC 160 HV with additional CAPPAC wired for CA and integrated with a shunt for current reads.
WIRING & CONNECTIONS: 8 AWG coiled 2 poles 1mt long cable, 8mm bullets, 5w 180 Ohms resistor for a "momentary touch" circuit to avoid sparks.
THROTTLE: Magura pot with both servo and CA-LRC interfaces.
BATTERY: since bricks are in a backpack, I could carry basically what I want. until now I've used 10 and 15-Ah Zippy 20C (4 or 6 x5Ah bricks) and 16-Ah turnigys 20C (4x8Ah bricks) in a 12s serie, the packs are permanently stored in lipoguards protections 2 by 2, with a rigid protection made by aluminum equal angle profiles and carbon strips
A video made today in the early morning....I finnally got a decent camera, next week I will post the freeride experiences, and any new ride shot or updated media:
[youtube]3LKOlmXF0Uc[/youtube]
In this thread I will share photo and vids about the evolution and future rides of my first E-bike. This build can be considered ended.
Since My buildthread ( http://endless-sphere.com/forums/viewtopic.php?t=25101 ) started 2 years ago is a bit confused I will resume the basics of the project:
Started the thread to design and prototype a dedicated Onion frame for an High powered Downhill E-Bike, two beautifull designs sorted out from the projecting phase. 1 for 72 to 144 18650 cells and another for up to 8x5Ah Lipo Bricks, both with a non welded modular frame fully adjustable.
Unfortunately at a certain point, I have abandoned the dedicated frame project, there was a lot of reasons like the lack of time due to too much projects working on, and 2 kids arrived in the last 2 years and half, plus a bad tax/financial conjuncture here in Italy that makes everything about production a nightmare.
So I decided in the meantime to first convert an existing frame, that was a prototype studio for the final MP5 production (maybe 15 pieces in total). It's the actual donor frame, and although It seems to be projected for electrics, it was not.
BIKE: Onion MP5 Studio Prototype with welded swingarm 260 or 240 rear shock lenght, 7° head adjust, 6 position BB adjusts.
WHEELS: front DTH 2.3 26" tire on a Custom Titanium hub; 24"x2.5 hookworm rear on a DMR revolver hub. for offroad I used a 26" WTB 2.5 DH tire front and a 24x2.6 halo ception rear, I'm looking for alternatives like Arrow's wide bite or DURO Wildlife, once I stareted with the Gravity world there was a lot of Gazzaloddi tires they was heavy but bombproof, unfortuantely out of production....and maybe a bit wide touching my left chain....
BRAKES Gustav M
MOTOR: Astro 32204t 3/8 shaft
DRIVE: Recumpence's DaVinci drive, 5:1 belt reduction with 1/2 Ti shaft, sliding tensioner and WI 16t output Freewheel, left chainring has 61t for a 19:1 total reduction.
ESC: CC 160 HV with additional CAPPAC wired for CA and integrated with a shunt for current reads.
WIRING & CONNECTIONS: 8 AWG coiled 2 poles 1mt long cable, 8mm bullets, 5w 180 Ohms resistor for a "momentary touch" circuit to avoid sparks.
THROTTLE: Magura pot with both servo and CA-LRC interfaces.
BATTERY: since bricks are in a backpack, I could carry basically what I want. until now I've used 10 and 15-Ah Zippy 20C (4 or 6 x5Ah bricks) and 16-Ah turnigys 20C (4x8Ah bricks) in a 12s serie, the packs are permanently stored in lipoguards protections 2 by 2, with a rigid protection made by aluminum equal angle profiles and carbon strips
A video made today in the early morning....I finnally got a decent camera, next week I will post the freeride experiences, and any new ride shot or updated media:
[youtube]3LKOlmXF0Uc[/youtube]