Crystalyte Crown motor laced in Surly Rolling Darryl rim

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mitchknights   1 µW

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Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by mitchknights » Jan 06 2014 8:03am

Hi all,

I have a couple of questions that I hope someone will be able to answer?

Will the Surly Unholy Rolling Darryl rim handle the torque of a Crystalyte Crown TC-65 at 72V 80-90A? Will be only used around town, never off-road.
If so, will the spoke dimensions be accurate for lacing the motor into the offset Surly rim? 160mm, 26 deg bend 8mm from spoke head.

I have a feeling that i will need two different length spokes for the offset. Any thoughts?

Cheers Mitch.

melodious   100 kW

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by melodious » Jan 06 2014 12:13pm

Not the best combo IMO. Your riding habits aren't close to tapping that motors potential.

The best combo if you have the know-how is use two small geared hubs for each wheel making it a dual wheel drive.

Another way, is a geared hub front wheel motor & a mid drive running the rear. That way you get more torque in the back wheel for powering through stuff. A little more complexity though.
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Brentis   10 kW

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by Brentis » Jan 06 2014 12:21pm

I could be miss informed, but I believe Surly fat bike rims are all 32h. The crown is 36h.
Not gonna be an easy fit. Possible, but not recommended.
I believe that Bionx is one of the few companies to offer a 32h e hub.
I suppose you could use other brands of 80-100mm rims that have 36h on your fat bike with a crown.

Good luck.

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Ypedal   100 GW

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by Ypedal » Jan 06 2014 12:44pm

melodious wrote: The best combo if you have the know-how is use two small geared hubs for each wheel making it a dual wheel drive.

Another way, is a geared hub front wheel motor & a mid drive running the rear. That way you get more torque in the back wheel for powering through stuff. A little more complexity though.
Imo.. both of those are not good ideas ..

if you want to run 3000w + .. one Direct Drive rear hub motor is the way to go.
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melodious   100 kW

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by melodious » Jan 06 2014 1:07pm

Another dilemma are the tires. Not sure what the user wants for speed level or rider input, but just looking at the 3-4 inch fat tires from surly, there is going to be an issue with wearing out the treads. I'm all for a fat tire revolution, but I think his type of riding is suited for a regular bike. Unless he lives in the mountains or snow country or the deserts or the beach or the lakeshores or the riverbeds or the... :wink:
Surly Ogre rigid 29er, rear 10T MAC @ 50V 25AH & 40A: 30mph road/gravel/hill machine
42" dual diagonal Eskateboard @6s & 90mm wheels
Next: eMTB @10-12s & 8"-12" pneumatic wheels; Got Strapped? d-(',')z

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wesnewell   100 GW

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by wesnewell » Jan 06 2014 1:25pm

Ypedal wrote:Imo.. both of those are not good ideas ..

if you want to run 3000w + .. one Direct Drive rear hub motor is the way to go.
+1
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botz244   10 W

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by botz244 » Jan 07 2014 1:53am

mitch just do, i have. to all the non fatbikers out there if you dont have one ,you cant talk. ive had mine for 2 winters. Ti Mukluk 4.8 tires on 80mm rim36 holes with a Cromotor 24 fet 20s2p. they do have 36 hole wheels even in 100mm wide but i went with 80 and mine are double wall. my bike fully loaded weighs in a 88.3 lbs. i wouldnt trust a single wall rear rim but i do have one on the front soon to be 85 mm carbon rim. and get a cromotor not something that isnt proven.all of the people here on this forum and youtube that have cromotors,were are the crowns motor vids and the other fun stuff LOL
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botz244   10 W

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by botz244 » Jan 07 2014 1:59am

i just typed 36 hole rolling darryl and it came up 162.00 and there out of stock. you have to use the internet

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by kudos » Jan 07 2014 4:47am

http://forums.mtbr.com/fat-bikes/36-spo ... 90101.html

This might be of use depending on where you are.....

Kudos
Build 1A Gary Fisher Wahoo Hardtail : Crystalyte HS3540 40A 49V
Build 1B Gary Fisher Wahoo Hardtail : Mac 10T 30A 49V
Build 1C Gary Fisher Wahoo Hardtail : Crystalyte HS3540 40A 82V
Build 2 Mountain Cycle Fury FS : Mac 8T 40A 57V : Scrapped
Build 3 GT LTS FS : Mac 10T 30A 49V
Build 4 EEB Frame: Mac 8T 40A 49V 32Ah

mitchknights   1 µW

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by mitchknights » Jan 07 2014 6:06am

Gents,

I have looked around and as previously stated in a reply above I am waiting for the 36h rolling Darryl rim to be back in stock in a few online stores. I grabbed a pair of the surly black Floyd slicks for shoes. I'll only be riding on bitumen on a custom built chopper frame I'm getting built. Don't necessarily require bulk top end just want bags of torque. Purely a beach cruiser for around the Gold Coast. Won't have any pedals only electric drive. Just want to sit back and enjoy the sights. 8)

I guess back to my original question does any have any experience using a surly rim with a hub motor. I know they are rugged rims with a seam welded joint. Anyone's thoughts on handling to torque?

Cheers Mitch.

botz244   10 W

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by botz244 » Jan 07 2014 4:27pm

Depents on the weight your goin to be riding and were your riding id still go with a double wall rim plus there in stock.plus cheaper in the long run itll be the last rim youll buy.the rim will be centered on your hub no offset

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100volts+   10 kW

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Re: Crystalyte Crown motor laced in Surly Rolling Darryl rim

Post by 100volts+ » Jan 07 2014 4:35pm

Ti Mukluk 4.8 tires on 80mm rim36 holes with a Cromotor 24 fet 20s2p
+1
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