Sprockets My Staton Freewheel Sprocket Disintegrated!

[5-7HEAVEN]

I've been riding "The Iron Dragon", my twin-engined monster daily for three months, about 500 miles. Yesterday on my way home, the engine on my Staton rear chain drive unexpectedly jumps into neutral at 25 mph. I coasted to a safe stop, lifted the bike onto the sidewalk and assessed the damage...

The 16tooth freewheel sprocket fell apart, and all the bearings were gone!

Soo, I turned the rear engine off, and motored home at 20 mph with the front engine.

The day before, the rear engine had started to surge and the chain had slackened. I thought it unusual that the chain was loose after several hundreds of miles' service. I made a mental note to check everything this weekend, but the sprocket expired yesterday. That must've been the reason the chain was loose.

I emailed Dave Staton, and am awaiting his reply.

Has this happened to anyone else with the freewheel sprocket on the wheel hub?

 

[ZnsaneRyder]

I was wondering about those freewheels. I am thinking about getting one in the future for a plastic wheel I got from them, but I may need 2 or more if they break like that!

Only 500 miles, OUCH. I get more than that out of some of my belts.

 

[DetonatorTuning]

5-7,

i had a freewheel give out when i was running the inside drive. it was the one on the output shaft though and that was from bad chain line. the wheel mounted freewheel was still fine.

can be aggravating but they need to be in absolute alignment to last.

sure was nice to have the front drive to avoid pedalling all the way home , eh !?!

steve

 

[5-7HEAVEN]

Chain alignment? That's interesting.

Znsane, Staton offers a 24tooth solid sprocket, no freewheel, to mount onto their hub. You'd have to factor in the difference between 16t and 24t, which is a lot.

 

[SirJakesus]

This is the first time I've heard of one of the staton lefthand freewheels blowing out like that after so few miles. Hopefully he'll give you a steal of a deal on another one.

 

[ZnsaneRyder]

Chain alignment? That's interesting.

Znsane, Staton offers a 24tooth solid sprocket, no freewheel, to mount onto their hub. You'd have to factor in the difference between 16t and 24t, which is a lot.

That's true, I just wish they sold a 44T or 48T freewheel, or even a 24T freewheel, so I don't need large sprockets and added complexity on a jackshaft to make the proper gearing work. I bought a Bicycle-Engines.com 48T freewheel, but it turns out that it's slightly bigger than the staton threads, and does not fit, without machining new threads to the unthreaded part of the staton hub. Bicycle engines only sells hub kits for spoked wheels, and I DO NOT want another spoked rear bike wheel, as I can't even get a non-driven spoke-wheel to last long. I see they also sell 5/8 shaft hub adaptors, so maybe another option is to have the 24T solid wheel sprocket, with a 16T freewheel on a jackshaft instead, and a large reduction sprocket.

5-7, I hope your new freewheel lasts longer, as 500 miles can be done in under a month if you ride enough.

 

[DetonatorTuning]

might put it down to poor chain management on my part, i was running with out any form of tensioner or guide for a while and i suspect the lateral slop was a big contributor.

steve

Chain alignment? That's interesting.

Znsane, Staton offers a 24tooth solid sprocket, no freewheel, to mount onto their hub. You'd have to factor in the difference between 16t and 24t, which is a lot.

 

[frameteam2003]

Those freewheels are really just A S Claws southpaws.I think White also sells a southpaw but their cost a lot more.The really cheep freewheels use spacers to take up where some bearring should be.

 

[Accender]

I would like to see a picture of you twin moto bike.
I looked in the pics section but could not find it.

ps: sorry about your free wheel.

A

 

[5-7HEAVEN]

My son came home Thursday, will live with us for four years until he gets his degree. He met "the Iron Dragon" and can't wait to ride it. Daughter wants to ride a bicycle to her community college seven miles away.

I'll start them both on pedal bikes.

Come Monday, I could use a motorized bike to commute to work until I replace the freewheel sprocket. I MIGHT install a Mitsubishi rear friction drive with 1.5" roller back on "The Dragon Lady". I ran that combination several months ago.

No word yet from Staton. I'll talk to him Monday morning.


Accender, were you with the 82nd Airborne Division? I was in Southeast Asia with the 101st Airborne Division in 1967...1968...1969.