(what you will see in the next few posts is a copypaste dump of an another forum on which I've already started documenting on this build, posts henceforth will be written on this forum platform and will likely make more sense)
This is a project that`s been lingering in the back of my head for years and years but since I don't want to build anything I cannot use in other than restricted areas never went forward with it. That is until I recently learned that if it`s done within a certain set of rules ( <50cc, <1kw, max25km/h assisted) it is in fact totally road legal, and doesn't even require any kind of a registration as in the eyes of the law it is -despite having an internal combustion engine- still considered as a bicycle.
This is my starting point, a 24" Jupiter five speed I purchased today for a budget breaking sum of 20 Euros. It`s a bit small but that doesn't matter much as it`ll be cut in two, stretched and modified heavily til I`m done with it. Plans for this project are to, as said, stretch the frame enough to make room for an engine and fabricate a springer style suspension up front. I probly will not make a "drop loop" frame as the engine I will be using is not big enough to warrant one. What comes to the engine I currently have two options. Either I will order one of those motorized bicycle two stroke conversion kits off ebay, take the engine apart and make it right as they`re known to be a bit s**t not even bothering to deburr the canals etc, or take a look at this 50cc kids china ATV engine I happen to have kicking around that has a cracked tranny casing due to a snapped chain and see if I could either mend it or cut it in two and only use the motor part.
Totally in love with the vintage details and the patina of this thing, trying to use as much of the parts originally on the bike to preserve it. And no not going to fret over stuff like it having a non-perioid-correct derailleur transmission as this is a total tongue-in-cheek project since it will not be registered so I can do whatever the f*** I please with it.
Looking at this scene made me pause a little, vividly remembering me asking my younger 4yo son "why would I buy you any new toys as the FIRST thing you do with ALL of them is take them apart?!" Made me go ummm... ;D Well to my defense I DO get most of them back together too AND pay for them myself!
Popping into the hardware store tomorrow for some 2x4:s and fittings to make a crude frame jig.
Oh and sorry for any missing A:s, for some reason the button in question seems to not always work on my garage laptop.
This is a project that`s been lingering in the back of my head for years and years but since I don't want to build anything I cannot use in other than restricted areas never went forward with it. That is until I recently learned that if it`s done within a certain set of rules ( <50cc, <1kw, max25km/h assisted) it is in fact totally road legal, and doesn't even require any kind of a registration as in the eyes of the law it is -despite having an internal combustion engine- still considered as a bicycle.
This is my starting point, a 24" Jupiter five speed I purchased today for a budget breaking sum of 20 Euros. It`s a bit small but that doesn't matter much as it`ll be cut in two, stretched and modified heavily til I`m done with it. Plans for this project are to, as said, stretch the frame enough to make room for an engine and fabricate a springer style suspension up front. I probly will not make a "drop loop" frame as the engine I will be using is not big enough to warrant one. What comes to the engine I currently have two options. Either I will order one of those motorized bicycle two stroke conversion kits off ebay, take the engine apart and make it right as they`re known to be a bit s**t not even bothering to deburr the canals etc, or take a look at this 50cc kids china ATV engine I happen to have kicking around that has a cracked tranny casing due to a snapped chain and see if I could either mend it or cut it in two and only use the motor part.
Totally in love with the vintage details and the patina of this thing, trying to use as much of the parts originally on the bike to preserve it. And no not going to fret over stuff like it having a non-perioid-correct derailleur transmission as this is a total tongue-in-cheek project since it will not be registered so I can do whatever the f*** I please with it.
Looking at this scene made me pause a little, vividly remembering me asking my younger 4yo son "why would I buy you any new toys as the FIRST thing you do with ALL of them is take them apart?!" Made me go ummm... ;D Well to my defense I DO get most of them back together too AND pay for them myself!
Popping into the hardware store tomorrow for some 2x4:s and fittings to make a crude frame jig.
Oh and sorry for any missing A:s, for some reason the button in question seems to not always work on my garage laptop.
Last edited by a moderator:
Almost never use them as mostly working on motorbikes in the shed where a socket wrench doesn't fit almost anywhere so they've been in disarray for quite a while. I somehow never seem to get to organizing them...
