staton 3.11 to 1 small light gearbox

Nathan, the simplest setup would be the Staton chain drive. The total weight of my Dahon with a pocket bike engine is 64 pounds. The pb engine might be a few lbs lighter than the Robin.

FWIW, my Aluminum cruiser bike with Rockshox fork and Mitsubishi friction drive also weighs about 64 lbs.

5-7
 
fireball jones, how will you mount the 5:1 gearbox? I like the staton 3.11:1 but this dax one is only 35 bucks! I don't see any mounting hardware sold on their site. It also seems that you would be locked into the sprockets and chains that Dax sells.
 
mount ideas/plans

hello 7-heaven, thanks for advice and pm i might have to consider a similar trans but im a four stroke man sorry. gotta care bout the enviroment and all.
63 puond bit heavy i think, my bike weight around 21 pounds, not bragging (boasting/showing off) as its cheap i just recommend

ok appye how to mount 5:1

basicaly i secure the engine block

option one: put on the back carring rack and run to freewheel then conseal it in a box etc

option two: mount to left side of wheel and run to my hd leftside motorized bicycle sprocket then conseal it in a pannier/saddelbag

option three: mount on to frame tube and run to crankset not sure if on top of tube or under neath please see my links for clarity of bike shape (Using a crankset with two front rings).

good and bad pionts as far as i see them

one: simple, low resistance, stelth which give a efficatian t overall ride. and it means i can speed past a load of smug gits (translates to fool who has a high opion of themselves) in expensive bike that where skin tight lycra and shout...errmm.. something witty but MAY not a durable ride only way it to TEST TEST TEST for proof though

two :good; more durable, give use to 110$ of wheel staton 48 hub. bad MAY be out of balance.

three: gears cmon i mean gears!! means a much more fuel effcient ride overall which i find important. bad mount postion more than likely to effect riding experience when engine not running

however havin the parts in front seems to create different ways of being creative.

appye: and the output sprocket is a standard size shape with most of the pocket bike gbs, ps i like the staon too but a gb with no out put sprocket is as usfull as a sack of spuds.

so what do you guys think? :-|
 

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heh ... It seems you are talking about where to mount the thing and not so much as how... Also, keep in mind that anything you mount to the same side if the bike as your existing bicycle chain needs to be made to spin in the opposite direction. Going 35mph in reverse is not going to be very safe!

You say you just secure the engine block. But what do you secure it to? That is what I meant by my question actually. It is the engine block itself and not the gearbox that you would bolt to your rear carrying rack somehow? Your language is a little strange to me, I guess Wales has a considerably different dialect than here in Los Angeles! No offense.
 
Hey Fireball Jones,

I hear ya. I still have my 4-stroke Subaru on the side. Actually, the Mits is highly rated as a "clean" engine.

BTW, in most configurations, your bike may not be able to fold. With the Staton outside drive box, my Dahon folded, but it no longer fit in its bag.

My bad, fireball, I just weighed my bike again. With the engine system removed, the bike weighs 29 lbs. The pocket bike engine and gear chain drive weigh 23 lbs. So my bike weighs about 52 lbs., not 63 lbs. Adding 6 lbs more for your heavier engine + tank and throttle would bring your weight up to about 50 lbs.

It's hard to be accurate with a bathroom scale. :)
 
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fireball jones, how will you mount the 5:1 gearbox? I like the staton 3.11:1 but this dax one is only 35 bucks! I don't see any mounting hardware sold on their site. It also seems that you would be locked into the sprockets and chains that Dax sells.

Are you taking into consideration that the 5:1 gearbox from DAX changes the direction of rotation of the motor? Yes its inexpensive but to make it work/drive on the left side of the bike you will need to add a jackshaft. The Staton 3.11 gear box has the third gear to maintain the CCW rotation of the engine.

ocscully
 
ocscully, oh well. I guess it was too good to be true. I did not know about that. I am thinking about getting the 3.11 tomorrow though.
 
appye...like...dude....urr..thanks.. haha only jokin. so back to business.

the intresting thing about design for me is how the similar problems are solved in different ways according to the designers available materials, skills etc.

if i had a welder I would weld something up to the carry rack (which is strong enough for me to stand on (im 85kgs) and pretty rigid.) howeever i dont so as a oak frame designer/builder ill make a plate that fastens to the rack. then i drill holes into this for the engine. ill then screw the engine to the plate. then ill drive the same wedge we use to hold up buildings to get the correect tension. see diagram.

ps those design are based on the dax 5:1 which is cw.

thanks 5-7 heaven ill have to do some research into the mits i didnt think it was possible to have a clean two stroke what so ever. and much appreciated for the extents taken in weighing you bike and one of the reasons im opting for the small gb is it means i can fold my bike.

ocsully: all the design i show are taking that into consideration, let me know if you see something you disagree with. ps i dont like using the jakckshaft. i just think the more part you got the more parts to go wrong.
 

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Anyway, how do you make the wheel turn the correct direction then without a jackshaft? Are you going to put the gear on the same side as the pedal gear? Turn the engine around?

And ... maybe I misunderstood. You are going to design these parts out of wood? You are going to use wedges to keep the chain tight? What about vibration and whatnot? How will the wedges be held in place?

You have GOT to post some closeups of this thing once it is put together!

Whoa duuuuude, like totally. Pass me that joint and we'll like toootally like whoaaaaaa urrrrr dude.
 
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