Wheel

[Deleted member 25783]

Tommy Griffin.
I emailed Lynn, this is her reply: "If this guy emails me I can show him what I have."
Lynn told me she last week that she is doing a build for a 350# fellow. That is quite a load on six 5mm screws.
That said, as I have a machine shop I am rethreading those disk brake hole to 6x1mm an shrinking a 3mm steel band around the hub for support. Just because I can do it.
I am a Tool and Die Maker and Lynn's engineering impresses my time and again. She is aware of the inherent danger of these fragile machines and that I appreciate too.

 

[Deleted member 25783]

Yes, inboard on a flat plate wouldn't do it, that's why the Kings top hat is a top hat shape, gives you 1/8"-1/4" more "inboardness" (two versions available).
If this new top hat adapter has the bolt pattern for the four bolt mountainbike chainrings that would be a great improvement over the original and I'm all for it.

You will have to email Lynn, her universal adapter looked mighty universal. That said, customer input greatly influences product.
Lynn has several CNC machine shops in the Milwaukee area that make product for her. I am happy to help her out with low volume items.

 

[Deleted member 25783]

I just seen that a guy destroyed one of these from the torque on his bike so I dropped it . I'm getting a chrome single speed freewheel and then I gonna use caliper brakes and a hub adapter .

Do you have a link to the part failure Tommy? My curiosity is killing me.

 

[FurryOnTheInside]

Do you have a link to the part failure Tommy? My curiosity is killing me.

I second that. I know that the disc mount can handle massive deceleration forces with a hydraulic brake and 205mm rotor.. and the force needed to stop from a certain speed in a certain amount of time is equal to the force needed to accelerate to the same speed in the same time, so it would be a very strong motor or a very large sprocket to exceed the force exerted by a brake.

 

[Deleted member 25783]

Good reply Furry,
I hope something comes of it
My enquiry to Tommy is solely based on possible failure by any load. I am using the same laced freewheel hub supplied by Lynn. She was very sure that the hub would withstand the drive force of my 79cc engine.
That said I am still going to do the old wheelwright method of heat expanding a steel band and let it shrink unto to wheel hub O.D. for additional strength. I may have a foolish streak but I am not stupid, I hope.
When I get around to doing the above I will post photos.