Convert this to a front wheel drive

pawtoki

Member
This Dream 7 is a heavy bike, I'd love to convert it to a front wheel drive with a Rad Rover power system. I can't "push" it past 8mph, and my knees give out by about 6 miles. The RRST I bought a year ago has been what I needed to get out on a bike again. But I miss the comfort of this ride
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RunForTheHills

Well-Known Member
Region
USA
I agree with Tom. The kits from Grin at ebikes.ca are great. However, I would consider a rear hub or mid-drive kit for that bike. It looks like all the weight is over the rear wheel and the front wheel may not have much traction. That bike is difficult to pedal because you are so far back and don't have any weight over the pedals. You can't leverage your body weight and have to use all muscle. It is not just the weight of the bike.
 

pawtoki

Member
I'm familiar with Rad, totally trust the components of Rad Power Bikes. I like the cadance system and PAS levels avaliable. Would like a direct drive that would add weight to the front of the bike and to help get the bike rolling. The trail is great for higher speeds but wonders at lower speeds. I think that is because the rake is causing an exaggeratedly long trail.

I love the semi-recumbant. It's not difficult to pedal at all. I have no cartilage on one patella and can't put the "muscle" stress through the left knee. My wife rides hers using legs, I have to slide forward to get weight on my rt leg to "muscle" up an incline. No bike works for me without an assist. One of the grand effects of getting old!

I looked at the ebikes.ca . Looks good, just don't see the specs for clearance needed to mount on the existing frame/front fork set-up.
 
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RunForTheHills

Well-Known Member
Region
USA
By clearance, do you mean the hub spacing or O.L.D.? Most bikes use 100mm spacing on the front hub and your bike doesn't look like an exception. You can measure it to be sure. The rear O.L.D. can vary a lot with the age of the bike. Be sure to get a torque arm with whatever kit you buy. Grin includes one, but not all kits do. The Grin kits with the CA3 are completely customizable for PAS levels, cadence sensors, and they even offer torque sensors.
 

harryS

Well-Known Member
As a starting point, put a magnet on your front fork to see if it's steel or aluminum. If he latter, I'd suggest either a rear motor, or a bafang BBS02 mid drive (750w) , or maybe a BBS01 (250-500W) if Tom can find one for you.

Front motors on alloy forks are generally not a good idea for a DIY ebike. Too easy to make a mistake and have the motor spin out of the fork. Nonetheless, after a few conversions, I explored FWD. I had a small 250W motor in the alloy fork on my minvello for several years. Nothing ever came loose, but I took the trouble this summer to convert it to a steel fork. I also have a 500W front motor in the steel forks of a 26" bike. Grin, by the way, sells a Bafang G11 front motor, and they have tested its mounting system, so if you must have FWD, that's probably a safe bet.

Grin technology is "too spendy" for me. For a new conversion project, I'm pretty entrenched with KT controllers and displays, found on ebay, aliexpress, etc.

FWD does have traction issues. The other day, I came home on my FWD beater bike, and tried to power up my freshly seal coated asphalt driveway. It was a damp evening, with ground fog, and I heard this terrible squeal, just before my front wheel started to slide out. Lucky I had both legs out to catch it. My little mini also has been known to spin tires on wet/loose surfaces.
 

pawtoki

Member
Tom, Run, and Harry - Thanks for the thoughts and input. The bike is lighter on the front end, so too much power is a concern. It's a steel front fork, alloy frame. The bike is about 34 pounds like it sits. A little assistance would make it more "knee frendly".

Day 6 sells a mid motor. Bike sells in the upper $3k range. It is a comfortable ride. I'll continue to put some thoughts in to it. Being retired, Mission Control (wife) considers this a "want" not "need" in the budget. LOL

Thanks again for the suggestions. I'll continue to save the $$ before I jump in. But it will probably happen next year.
 

harryS

Well-Known Member
The same mid motors are available elsewhere, probably for a lot less, but Day6 needs to make their profit too. Ditto for batteries. Ask Tom for a quote via private message. I shop at discount shops, but believe $1000 would easily cover a conversion if I wanted to do one.
 

john peck

Well-Known Member
This Dream 7 is a heavy bike, I'd love to convert it to a front wheel drive with a Rad Rover power system. I can't "push" it past 8mph, and my knees give out by about 6 miles. The RRST I bought a year ago has been what I needed to get out on a bike again. But I miss the comfort of this ride
.View attachment 99660
Looks like a good candidate for a mid-drive as well. There are so many front whl kits out there;
I´d take my time & research carefully b4 buying. frame might be too narrow for a rear hub
 
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