Ruff Cycles Cafe concept

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WilliAmp   100 µW

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Ruff Cycles Cafe concept

Post by WilliAmp » Jan 31 2018 4:54am

Here's the updated concept--I'm thinking aluminum might be easier than carbon--certainly cheaper. I picked up a 19" front motorcycle rim per GCinDC's comparison https://endless-sphere.com/forums/viewtopic.php?t=55458. The electrics kinda terrify me! Any input is welcome!

Image

https://lh3.googleusercontent.com/Ckm-X ... 0-h1200-no


Here's the concept I roughed together:
Image
Forgive the crappy Photoshoppin'.
Here's the Ruff Cycles Porucho frame:
https://lh3.googleusercontent.com/o6bdc ... 59-h826-no
Last edited by WilliAmp on Apr 12 2018 8:12pm, edited 1 time in total.

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Willow   10 kW

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Re: Ruff Cycles Cafe concept

Post by Willow » Jan 31 2018 7:44am

nice.

here is one I did a few years ago.
profile.jpg
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WilliAmp   100 µW

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Re: Ruff Cycles Cafe concept

Post by WilliAmp » Feb 08 2018 1:21am

Nice build! I love that Ruff Cycles Porucho frame!

maydaverave   10 kW

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Re: Ruff Cycles Cafe concept

Post by maydaverave » Feb 09 2018 3:35am

What is the rear shock for? The seat?
e-bikekit 50v 9.2ah cellman pack

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Re: Ruff Cycles Cafe concept

Post by maydaverave » Feb 09 2018 3:37am

Your going to want to maximize the leverage on the shock if it's just your body weight that's sprung.
e-bikekit 50v 9.2ah cellman pack

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Skaiwerd   100 W

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Re: Ruff Cycles Cafe concept

Post by Skaiwerd » Feb 09 2018 6:16pm

WilliAmp wrote:
Jan 31 2018 4:54am
Here's the concept I roughed together:
Image
Forgive the crappy Photoshoppin'.
Here's the Ruff Cycles Porucho frame:
Image
I’m liking the concept but...
You have covered one of the most interesting parts of that frame, the curved down tube. Not every frame has that, just straight tubing.

WilliAmp   100 µW

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Re: Ruff Cycles Cafe concept

Post by WilliAmp » Apr 12 2018 7:44pm

maydaverave wrote:
Feb 09 2018 3:35am
What is the rear shock for? The seat?
Yup, saddle suspension. I'm no designer! ... wait, I *am* a designer! I'm a user interface designer, not a mechanical designer :| Hell, I just thought it looked cool.

WilliAmp   100 µW

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Re: Ruff Cycles Cafe concept

Post by WilliAmp » Apr 12 2018 7:47pm

Skaiwerd wrote:
Feb 09 2018 6:16pm
WilliAmp wrote:
Jan 31 2018 4:54am
Here's the concept I roughed together:
Image
Forgive the crappy Photoshoppin'.
Here's the Ruff Cycles Porucho frame:
Image
I’m liking the concept but...
You have covered one of the most interesting parts of that frame, the curved down tube. Not every frame has that, just straight tubing.
Yeah, I love the board tracker frames, but I also like the look of body panels--even though aerodynamics on a motorcycle frame are almost futile, since the rider is the biggest aerodynamic drag problem!

WilliAmp   100 µW

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Re: Ruff Cycles Cafe concept

Post by WilliAmp » Apr 12 2018 7:49pm

maydaverave wrote:
Feb 09 2018 3:37am
Your going to want to maximize the leverage on the shock if it's just your body weight that's sprung.
Meaning... position the shock(s) further back? I was thinking of running shocks on either side of the saddle, down to the drop outs.

WilliAmp   100 µW

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Re: Ruff Cycles Cafe concept

Post by WilliAmp » Apr 12 2018 7:51pm

Willow wrote:
Jan 31 2018 7:44am
nice.

here is one I did a few years ago.

profile.jpg
Thanks! I like your build!

WilliAmp   100 µW

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Re: Ruff Cycles Cafe concept

Post by WilliAmp » May 06 2019 12:15am

Here's the latest on my bike... err, moped? Motorcycle? I need to finish the 12v electrical wiring for the lights, then build the aluminum tank and battery cover fairing... and custom disc for the rear wheel... And custom brake mount... And then I'm left with a 50+ mph vehicle I can't legally ride... Hmm.

Image

FarmerFpv   10 mW

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Re: Ruff Cycles Cafe concept

Post by FarmerFpv » Dec 25 2019 1:16pm

Isnt the rear drop out for that ruff cycles frame only 135mm how did you get the 8000w motorcycle hub and rim on it, that hub motor has 150mm droup out width. I seen the picture of it on the amazon reviews 8000w ebike concversion kit Willyamp. Or is the rear drop out of that frame 150mm? I want to use a ruff cycles frame just like yours vut on the website it says 135mm drop out. So no way I can fit the 150mm drop out hub motor like you have on yours.

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Re: Ruff Cycles Cafe concept

Post by FarmerFpv » Dec 25 2019 1:28pm

Does anyone know the rear drop out inside width on the ruff cycles porucho frame? I am wondering if it will fit a hub with a 150mm drop out spacing?

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amberwolf   100 GW

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Re: Ruff Cycles Cafe concept

Post by amberwolf » Dec 25 2019 8:07pm

http://store.ruff-cycles.com/ruff-cycle ... rucho.html
Additional Information
Rims
24", 26", 28" with 65, 80, 100mm Width
Bottom bracket
US / BMX
Head Tube
1 1/8"
Seatpost
31,8 mm
Rake Angle
69°
Disc mounts
Optional
Coaster Brakes Holder
Yes
Color
Unpainted / Raw
Head Tube Length
125 mm
Seattube to Headtube
∼760 mm
Seattube to Bottom Bracket
∼665 mm
Width between Chain stays
135 mm

Chain Links
∼162
Chain Length
∼2000 mm
Material
Steel
Designer
Sebastian Anger
Warranty
Lifetime
Weight
6,7 kg

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Willow   10 kW

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Re: Ruff Cycles Cafe concept

Post by Willow » Dec 31 2019 7:25am

FarmerFpv wrote:
Dec 25 2019 1:28pm
Does anyone know the rear drop out inside width on the ruff cycles porucho frame? I am wondering if it will fit a hub with a 150mm drop out spacing?
frames are steel - you can just pull the dropouts apart to widen.

FarmerFpv   10 mW

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Re: Ruff Cycles Cafe concept

Post by FarmerFpv » Jan 02 2020 7:03am

Willow wrote:
Dec 31 2019 7:25am
FarmerFpv wrote:
Dec 25 2019 1:28pm
Does anyone know the rear drop out inside width on the ruff cycles porucho frame? I am wondering if it will fit a hub with a 150mm drop out spacing?
frames are steel - you can just pull the dropouts apart to widen.
Thanks, Unfortunately, I was wrong about the hub motor dropout spacing, ever hub motor I have found over 1500w has a 170/175mm drop out spacing, won't be able to spread the dropouts that wide without issues. Looks like I'm going to have to find some other brand of fat tire beach cruiser for my build. Unless it's possible to Lace a 26 x 80mm or 100mm wide wheel on a QS 205 50h hub motor? Sure wish those Ruff Cycles frames had wider dropouts. Guess they want you to buy their E-bikes.

SlowCo   100 kW

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Re: Ruff Cycles Cafe concept

Post by SlowCo » Jan 02 2020 9:11am

FarmerFpv wrote:
Jan 02 2020 7:03am
Thanks, Unfortunately, I was wrong about the hub motor dropout spacing, ever hub motor I have found over 1500w has a 170/175mm drop out spacing, won't be able to spread the dropouts that wide without issues.
What issues? How do you think frames are made? They bend the tubes in shape. So if it's a steel frame then you can bend out the dropouts a little wider then necessary with a scissor or hydraulic (car) jack. Then bend the dropout plates a little inwards to get them parallel again. Widening each side 20mm to go from the 135mm to 175mm is not a problem for a normal steel frame.

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Re: Ruff Cycles Cafe concept

Post by FarmerFpv » Jan 04 2020 6:45pm

SlowCo wrote:
Jan 02 2020 9:11am
FarmerFpv wrote:
Jan 02 2020 7:03am
Thanks, Unfortunately, I was wrong about the hub motor dropout spacing, ever hub motor I have found over 1500w has a 170/175mm drop out spacing, won't be able to spread the dropouts that wide without issues.
What issues? How do you think frames are made? They bend the tubes in shape. So if it's a steel frame then you can bend out the dropouts a little wider then necessary with a scissor or hydraulic (car) jack. Then bend the dropout plates a little inwards to get them parallel again. Widening each side 20mm to go from the 135mm to 175mm is not a problem for a normal steel frame.
I know how they are made, I was just afraid it will tweak the frame because one side will bend farther over than the other? I ended up buying a QS 205 50H that has 150 mm dropout and Laced it with an 80mm wide fat wheel. I was also afraid the chain line would be too far off to line it up. IDK I guess I'm just being over cautious because it's not cheap. Do you happen to know what a US/BMX bottom bracket is? When I google it all it says is USA or American bottom bracket, I'm guessing that's what ruff cycles mean with US/BMX?

I'm trying to find an inexpensive 3 piece crank and bottom bracket but "US/BMX" confuses me as I'm clueless about all this stuff.


Thanks.

I did join some ruff cycle build forums but even their information is incomplete and there haven't been responses in a long time.

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Re: Ruff Cycles Cafe concept

Post by amberwolf » Jan 04 2020 8:51pm

you can look on sheldon brown's bicycle site fro more info, but most likely that kind of bb is a one-piece-crank style, sometiems called ashtabula. you can buy conversion kits to put a 3 piece crank in there instead.

a simple google search on the exact phrase you used in your own post finds a lot of info including sites with parts
https://www.google.com/search?q=US%2FBMX+bottom+bracket

if what you see in that search dosn't match what you have then you have to ask the frame manufacturer for exact specifications and then match those to what's available out there at bike shops.

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Willow   10 kW

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Re: Ruff Cycles Cafe concept

Post by Willow » Jan 07 2020 12:56am

not a drama. it can be done by hand very easy. I've spread them to 180mm without an issue.

Lay the frame on it's side on the ground. Stand on the swingarm side on the ground - near to the main frame. Pull the other side of the swingarm at the dropout end till it shifts a little., Flip it over and do the other side. Check the measurement and go again if needed. A little wider than required is fine and makes it easy to install motor. if it's not 100% equal it doesn't matter... just got to get the wheel aligned when it's in place. And they can be pushed back if needed. The steel is very forgiving.

a really fat tyre may interfere with the chain-line. I've run a 3inch motorcycle tyre on the rear without issue.

Get the bottom bracket adapter (sold by Ruff or Classic Cycles), which just pushes into the bottom bracket tube and allows you to run a modern cassette and a standard MTB crank

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Willow   10 kW

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Re: Ruff Cycles Cafe concept

Post by Willow » Jan 07 2020 1:41am

some photos of one I'm doing now. Swingarms are widened to 160mm.
Attachments
20200107_170428.jpg
I used a weld-on kick-stand and added some fixing lugs
20200107_170428.jpg (188.05 KiB) Viewed 1100 times
20200107_170435.jpg
The adapter is pressed (beaten with a rubber mallet) into place.
20200107_170435.jpg (186.87 KiB) Viewed 1100 times
20200107_170449.jpg
bolt-on 12mm stainless torque arms. A pinch bolt will go through the end
20200107_170449.jpg (119.06 KiB) Viewed 1100 times

toro1978   10 mW

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Re: Ruff Cycles Cafe concept

Post by toro1978 » Jan 07 2020 4:50pm

Very cool, but what are the pedals for, why not eliminate them? I assume you are going "throttle only"? Because if you keep pedal assist what would you do about the chainline? With that hub width you might need a fatbike BB in order to have a straight chainline.
And with "throttle only" you can skip the chain and instead of pedals have pegs or floorboards :) This would be a sick ride.
I'd do that if throttle was not outlawed here in Germany. :( I mean I don't mind pedaling, but it is limiting when it comes to design decisions.

Edit: Oh, you want to have a cassette in the rear? I get it now. Still, wouldn't be tricky with the chainline? :shock:

FarmerFpv   10 mW

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Re: Ruff Cycles Cafe concept

Post by FarmerFpv » Jan 09 2020 4:19am

Willow wrote:
Jan 07 2020 1:41am
some photos of one I'm doing now. Swingarms are widened to 160mm.
Thanks, bro, you have been a great deal of help and patient with me I really appreciate that. I purchased the Park Tool Frame and Fork End Alignment Gauge Set guess won't hurt to have it since i do plan on building many more bikes.


I'm now just waiting for my parts, meanwhile, I'm going to make a plug for my battery encloser that will go in the frame. I want my battery enclosure not to cover the nice shape of the frame but to follow the contours. Most likely will be split mould so that the tubes can recess just a tiny bit where the seam will be.

Or I might just use my tig welder I bought 3 years ago never used it and practice welding some aluminium. I did custom car stereo SQ and DB drag custom builds for years and I don't miss working with fibreglass lol

That's probably the only thing i will be good at with this build the rest will be new territory for me especially the battery I have only built smaller 18650 packs, 6s4p for my long-range FPV planes and drones. The electronics I bought was a complete kit with waterproof connectors plug and play that should not be hard.

I wonder if I should purchase my first battery and just slowly take my time building my second battery? What would be a good place to buy a 72v 25ah pack?

BTW I have seen your builds, they are very professional and inspiring hope I can get to that level one day.

Rob
Last edited by FarmerFpv on Jan 09 2020 4:54am, edited 1 time in total.

FarmerFpv   10 mW

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Re: Ruff Cycles Cafe concept

Post by FarmerFpv » Jan 09 2020 4:32am

toro1978 wrote:
Jan 07 2020 4:50pm
Very cool, but what are the pedals for, why not eliminate them? I assume you are going "throttle only"? Because if you keep pedal-assist what would you do about the chain line? With that hub width, you might need a fat bike BB in order to have a straight chain line.
And with "throttle only" you can skip the chain and instead of pedals have pegs or floorboards :) This would be a sick ride.
I'd do that if the throttle was not outlawed here in Germany. :( I mean I don't mind pedalling, but it is limiting when it comes to design decisions.

Edit: Oh, you want to have a cassette in the rear? I get it now. Still, wouldn't be tricky with the chain line? :shock:
I bought a wider spindle for the bottom bracket that's used for motorized bikes and an offset single speed rear sprocket, my chain line with the fat wheels will be perfectly fine. found out there are many ways to adjust the chain line. That's one thing I did my research on as they do it all the time on the IC engine motorized bike conversions.
Last edited by FarmerFpv on Jan 11 2020 10:47am, edited 1 time in total.

FarmerFpv   10 mW

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Re: Ruff Cycles Cafe concept

Post by FarmerFpv » Jan 09 2020 4:40am

I purchased a book on building batteries from the ebikeschool.com guy that makes lots of youtube videos. The reviews do say it's a great book for beginners, is there any e-bike books y'all would suggest? I do enjoy reading if you know of any books that would be valuable for a beginner e-bike builder leave me a link.

Thanks

Rob
Last edited by FarmerFpv on Jan 21 2020 12:07am, edited 1 time in total.

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