Duck, Duck, Mongoose.

I have finally settled on my next bike. It's a steel frame Mongoose Creekside. This bikes sole purpose will be speed and R&D. I've had this bike for some time and have already replaced all the bearings with sealed cartridges in the headset and bottom bracket. It had brand new everything as I had just rebuilt the bike before I stumbled upon this motorized bicycle craze.
This bike is going to be the recipient of the Dio Reed Sleeved Stroker Engine I'm building. The Jack shaft kit has been ordered along with another Oko carb. The rear rack is going and the seat is getting lowered and pulled back.
Going get rid of the suspension forks and go with a set of 30" triple trees forks with clip on bars. I'm still undecided about the gas tank but I'm sure I'll think of something and change my mind 10 times long before then. This build isnt in a rush to finish as I still have really never finished the Rambler yet and need to finish up the lighting system I have for it. And im also getting married for the first time in October and I have lots to do before the wedding. I will however keep the build updated as it progresses.

 

[GreasyChris]

Sweet, thanks.

 

[FurryOnTheInside]

This (disgustingly dusty) 32 spoke wheel is laced 4-cross. Even though the hub has a low flange, the spoke heads are being touched by the adjacent spokes crossing them. You don't want them to touch like this or worse than this.
I believe you need 48 spokes before you can do 4-cross, which is the same tangential angle as 36 spokes and 3-cross lacing.
32 spokes laced 3-cross has a greater tangential angle than 36/3 and 48/4 so it is enough.

 

[GreasyChris]

The fella I got these wheels from was kind enough to give me the manual that came with the nuvinci hub and they recommended a 2 cross pattern for a 26" and 700 wheel. Im pretty sure im going to just have the bike shop lace em up. It's not particularly something I want to have fail at high speeds lol

 

[FurryOnTheInside]

The fella I got these wheels from was kind enough to give me the manual that came with the nuvinci hub and they recommended a 2 cross pattern for a 26" and 700 wheel. Im pretty sure im going to just have the bike shop lace em up. It's not particularly something I want to have fail at high speeds lol

I think the reason for the bike shop mechanic lacing my wheel the way he did was because I asked him to replace the old rim and keep the cost down. The new rim was deeper section, semi-aero, so in order to reuse the spokes he just added the extra cross at the flange.

 

[gary55]

The fella I got these wheels from was kind enough to give me the manual that came with the nuvinci hub and they recommended a 2 cross pattern for a 26" and 700 wheel. Im pretty sure im going to just have the bike shop lace em up. It's not particularly something I want to have fail at high speeds lol

I think the reasoning behind the recommended cross 2 for these hubs is the huge radius of the hub itself. Mine was done cross 3 by the shop because I didn't read the manual before taking the hub in to be laced, and the tech didn't do his research before ordering the spokes. It's held up well to a pretty fair share of abuse so far so I guess it's OK, but If I had to do it again I would go with the manufacturer's recommendations.

On the gearing I have:

engine 10
left shaft 17
right shaft 10
outside ring 44
inside ring 40
hub 18
You can see it gets a little busy with a cross 3 on such a large hub.
View media item 61792

 

[gary55]

The fella I got these wheels from was kind enough to give me the manual that came with the nuvinci hub and they recommended a 2 cross pattern for a 26" and 700 wheel. Im pretty sure im going to just have the bike shop lace em up. It's not particularly something I want to have fail at high speeds lol

On the chaining My engine will accept a 410 chain so on everything except inner ring to hub I use a KMC 710 Kool chain. On the inner ring to hub I use KMC 810 Kool chain. I went to the 3/32" for the final drive because there is close clearance between the sprocket and the latch that holds the cables in place on the hub and the 1/8" wants to hit the latch and open it. It doesn't cause the cable to come off, but it just bugged the crap out of me so.

 

[FurryOnTheInside]

I think the reasoning behind the recommended cross 2 for these hubs is the huge radius of the hub itself. Mine was done cross 3 by the shop because I didn't read the manual before taking the hub in to be laced, and the tech didn't do his research before ordering the spokes. It's held up well to a pretty fair share of abuse so far so I guess it's OK, but If I had to do it again I would go with the manufacturer's recommendations.

On the gearing I have:

engine 10
left shaft 17
right shaft 10
outside ring 44
inside ring 40
hub 18
You can see it gets a little busy with a cross 3 on such a large hub.
View media item 61792

The spoke heads don't interfere with the spokes, and a broken spoke can be removed without having to loosen the spoke crossing it.
So I would think the only concern is the angle of the spoke to the rim.. A popular topic on the big ebike forum.
Too much angle is a stress on the rim from the nipple leaning to one side and not seating well. On the spoke- the spoke shouldn't bend at the top of the nipple/ thread to line up with the nipple. Some bend nearly always occurs, and some leaning of nipple too.
Two cross would be better I'm sure, but I wouldn't worry about it on this wheel, it isn't as big a hub as an electric motor hub.

 

[gary55]

The spoke heads don't interfere with the spokes, and a broken spoke can be removed without having to loosen the spoke crossing it.
So I would think the only concern is the angle of the spoke to the rim.. A popular topic on the big ebike forum.
Too much angle is a stress on the rim from the nipple leaning to one side and not seating well. On the spoke- the spoke shouldn't bend at the top of the nipple/ thread to line up with the nipple. Some bend nearly always occurs, and some leaning of nipple too.
Two cross would be better I'm sure, but I wouldn't worry about it on this wheel, it isn't as big a hub as an electric motor hub.

Now that you pointed this out it is exactly what caught my attention and concern when I picked up my wheel. Bending of the spoke at the nipple. The tech said it wasn't ideal, but would be OK. So far so good. I do also see slight lean of the nipple. Glad I used hoops with eyelets. Guess that may be my saving grace.

 

[GreasyChris]

Now that you pointed this out it is exactly what caught my attention and concern when I picked up my wheel. Bending of the spoke at the nipple. The tech said it wasn't ideal, but would be OK. So far so good. I do also see slight lean of the nipple. Glad I used hoops with eyelets. Guess that may be my saving grace.

This got me looking at these rims and even with the cross 2 lacing the spokes are bent at the nipples. It almost looks like it's the eyelets that cause the spokes the be bent.

 

[Spare_Parts]

Nipples with a rounded base help. Sorry about the bad info on the lacing.

Sapim Aluminum Polyax Nipples

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