Freewheel crank resources

The laws here in California are similar, just resubmit with a power type switch.

This is way down the road for me, however. I've got 4 ebikes that get used, and two that don't (Giant eSuede and a mtb with a Bionix setup...), and one in the works (the 16" Dahon Curve, with the Hacker and Matt's GB...). Before I even consider trying to do a motorcycle conversion, I want to convert both Townies (mine and my wife's...) to RC-based setups, so my plate is probably full well into next year.

The Curve will get the Hacker/eDrive setup, driving the front crank. The Townie's will probably use David's new 60-series motor, and either the "series" drive Mitch is doing, or it will drive the front crank, like I'm going to do on the Curve. If it is the latter, I might also opt for the 8mm belt drive option, assuming you guys get all the bits and pieces sorted out. :)
 
Hi,

David said:
I'm also targeting insane power levels and fairly high motor rpm since that is what I'm passionate about. The motor will be in the 3lb range with continuous power levels of 4-6Kw with peaks of over 12Kw.

Gary said:
Anyway, my point to all this was that Dave's 3-pound 60-series motor is capable of similar performance as one of the big Etek/Mars-type setups, but with a fraction of the weight. Opens up all kinds of possibilities. :)

Matt said:
Ultimately I would love a mountainbike running 24 inch rims with the performance of a 80cc dirtbike. A 125 is alot more powerful and would require serious wheels and what-not to handle the power. Besides, a 125 is really overpowered. I think the "Perfect" dirtbike is the Kawi big wheel 80. They are a touch smaller than a 125, but bigger than an 80. 15kw peaks with a truely sustainable 9kw should to the trick............

deecanio said:
before i embarked on the ebike build i'd seen a ktm80 in a shop where i was asking about mc rims, i looked and knew that the bike would fit me like a glove and be more than capable for my skillset.

i put 80cc gasser as the goal for the stinky a while back and if we get the figures Gary is talking about then that is definately achieved imo.

It sounds like we need an X-era 80 series or maybe even an X-era 100 :twisted: series with a very heavy duty Matt reduction drive.
 
Miles said:
You're in over your head now, mate :mrgreen:

heheheheheheh, i guess i am :) at least im not as snowed with bikes as Gary :shock: 4???
tbh i think the only one i may do after stinky is something for the wife, maybe just hub so she can keep up,sometimes :twisted:
for a road bike i'd be very much into the pocket rocket type, cagiva mito i think :)

Cheers,

D
 
deecanio said:
heheheheheheh, i guess i am :) at least im not as snowed with bikes as Gary :shock: 4???
tbh i think the only one i may do after stinky is something for the wife, maybe just hub so she can keep up,sometimes :twisted:
for a road bike i'd be very much into the pocket rocket type, cagiva mito i think :)

Cheers,

D

Actually I have one for me, and one for my wife, times two. We use the Townies around where we live, and then I take the two folding bikes with us when we go to our condo in San Diego.

The 16" Dahon was actually the 1st folding bike I bought, which I used with a 4-series Clyte. Not enough "oomph" for my tastes( :roll: ), and it wouldn't take an x5, so I went to the larger 20" folding bikes. The Cyclone setup is a ton lighter than x5 it replaced, and works great on a 16s a123 setup, which again is less weight from the 24s/72V configuration it replaced.

With the Hacker, and Matt's eDrive, this will be the lightest setup yet, but should have very similar performance to the Cyclone-based Mariner. This thing folds up small enough that you could easily take it on a train, or even as checked baggage on a plane. We could actually use a couple of these to ride to the train station, take the train down to SD and ride this to our condo on Mission Bay. We don't ever drag much in the way of clothes back and forth, as we have stuff down there, so this would be a great way to not use a drop of gas. :mrgreen:
 
Hi,

I talked to someone today who recommended using the freewheel crank from a tandem. He said he thinks its easy to replace the FW that comes with tandem cranks with a white FW.
 
MitchJi said:
Hi,

I talked to someone today who recommended using the freewheel crank from a tandem. He said he thinks its easy to replace the FW that comes with tandem cranks with a white FW.

Where to find uch a thing, though? I did some checking, but all the tandem setups I've seen so far, both sets of pedals are locked togethre, so no freewheel.
 
Okay, I found this listing: http://www.easystreetrecumbents.com/stuff/drivetrain.html You need to scroll down about halfway, and there is a rear IPS crankset that looks perfect for what we are tring to do here. I don't know if the freewheel is as robust as the White Industries ENO, but for $150 you get everything. It apparently has a 110mm BCD mount for the timing chain, which we can use for the chain to the GB, and a standard 130/74mm BCD setup for driving the rear. What else is needed?
 
GGoodrum said:
Here's another IPS crankset, which is a bit less expensive. It also uses a standard 16T BMX freewheel, so you could actually replace this with a higher-quality ENO version.

I went ahead and ordered one of these, to see how well it works. If the FW doesn't hold up, I'll replace it with an ENO.
 
I used the stoker version of the IPS on my Giant. The standard shimano freewheel wore out really quicky and needed frequent repacking with grease. Went for a white eno and haven't had a problem since. Did need to get the IPS machined out 1mm in all directions to get it to fit though...
29112008438-1.jpg
 
Guys just to let you know i have some freewheel cranks going on ebay at the moment, cyclone, have been used for about 10 miles!thay are a bit scratched but nothing wrong with them!

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=140291177433&ssPageName=STRK:MESE:IT&ih=004

will post wherever as long as you pay the delivery!

andy
 
So I saw this advertised for $125 on Craigslist.

3ne3m23lb11014a1g28cvdf136d0e600d1662.jpg


Could I pillage the frame for the FW or am I gonna end up with a cheap shimano FW that will just shred in due time?
Still a good price, huh?
 
etard said:
So I saw this advertised for $125 on Craigslist.

3ne3m23lb11014a1g28cvdf136d0e600d1662.jpg


Could I pillage the frame for the FW or am I gonna end up with a cheap shimano FW that will just shred in due time?
Still a good price, huh?

Not all tandems have freewheels on the stoker cranks, so you might end up with nothing. In any case, if it did have an IPS crankset, the freewheel is probably just standard issue.

-- Gary
 
Hey Gary,
Any updates on the quality of that IPS? It seems to be the best price that I have seen. Also, I like the idea of your 3 speed rear hub, and it seems that you can buy a bike with one on it, for a little more than buying it outright. :roll: Do you have a cheap source for one?

Thanks,
Dave
 
I'm hoping to finally get time this weekend to get my test setup going, with the Hacker and the IPS crankset on my 16" Curve D3 folding bike. I'll know more about how the IPS will hold up after I get this going. For my other bike I'm converting (26" Townie...), I've got a 22T White Industries ENO FW with a "Big Cheese" adapter and the Echo crank arms.
 
Yay! I just won a brand new SRAM 3 speed hub on ebay for $50, I don't know if it will accept a disc brake. How can you tell? The "Big Cheese" sounds expensive.
 
Actually, the Big Cheese adapter is only about $15: http://www.ebikestop.com/big_cheese_110mm_5_arm_chainwheel_adaptor-CR7298.php. What is expensive is the White Industries 22T ENO freewheel. You also need to drill out the the center of this adapter to about 56mm, and then drill holes to mount the ENO FW. Not exactly "plug'n play", like the IPS crankset, but once complete, it should be pretty bulletproof.

For the next bike I do, I think I will simply use the IPS crankset, but replace the 16T cheap freewheel that comes inside with a 16T ENO.

-- Gary
 
I just received my IPS crank set about 2 weeks ago to realize it is not going to fit my application.

If anyone is looking for one let me know. Paid 130 USD for it, I will let it go for 80 USD plus shipping.

It is the captains one.
 
I think is a direct replacement for a removable cassette carrier rear hub ( if you know what I mean :? ) some freewheel rear hubs you can replace the freewheel cassette carrier which contains the pawls. But not totally sure :lol: .
 
Hi all.

im in the process of replacing / upgrading the freewheel crank setup on my cyclone powered MTB.
can someone PLEASE point me in the direction of a cheap source for the white ind 22T freewheel ?

the bets price i have seen so far is $130 AU not including shipping !
that seems a little much to me ?

i can get all the other parts locally cheap enough, just the FW seems excessively expensive.

Jason.
 
I got mine from http://www.definitivecycles.com.au for $110 delivered. But that was almost a year ago. With the Australian dollar so low against the greenback i doubt youll find a much better price. Ive never seen them going second hand, which i suppose is testament to their quality.
 
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