Hey guys thought I'd show some of my progress with this bike. Found it at the thrift store for 40 bucks, already had the Lifan 79cc from a mini bike that I salvaged, and thought I'd try a shifter build.
It's just a 3hp engine so I think it's tame enough for the SBP bearings. I am just about done with the build.
I bought a SBP 1 way bearing set with two sprockets, I'll post the tooth count later it's been over a year since I purchased them. Clutch is 12t #35 going to 36t primary reduction. Has 6 speeds in the rear used to be an 18 speed.
I welded the old mini bike engine mount to the Huffy frame, cleaned up and painted black. Nothing special.
The original shifter was mounted on the neck, when I added the SBP bottom I lost the need to shift one derailleur. This Lifan still has the original carb but I removed the governor internally while keeping original linkage. I moved the old shifter levers to the new cruiser handlebars so I shift with my thumb and also throttle with my thumb. Reminds me of an old old Triumph with their thumb throttles.
I took whatever gas tank I had laying around, I think it's a 3 liter.
The seat post is 1/2" black iron pipe bent at a 90 degree angle to suit my long legs. I rode around with no engine and it's fine, though I may add a gusset for extra strength and more looks. I took the saddle off while welding but it's just an eBay special leather sprung saddle.
I just need to size up my chain running from the secondary to the chainring, add a tensioner to keep that chain away from my throttle linkage, and obviously trim down the 5/8, shaft. I'll have to look at my original napkin math for the top speeds it should theoretically go but from what I remember I kept it mild. Maybe 45 max if it could even go that fast.
I wanted to finally finish this bike before I start on a much more ambitious project and I had everything prepped then shelved it for a year. Got most of the progress done today on my day off thanks to the prep work.
I'm not dead set on this gas tank, I don't like how close it gets to the OHV cover.
It's just a 3hp engine so I think it's tame enough for the SBP bearings. I am just about done with the build.
I bought a SBP 1 way bearing set with two sprockets, I'll post the tooth count later it's been over a year since I purchased them. Clutch is 12t #35 going to 36t primary reduction. Has 6 speeds in the rear used to be an 18 speed.
I welded the old mini bike engine mount to the Huffy frame, cleaned up and painted black. Nothing special.
The original shifter was mounted on the neck, when I added the SBP bottom I lost the need to shift one derailleur. This Lifan still has the original carb but I removed the governor internally while keeping original linkage. I moved the old shifter levers to the new cruiser handlebars so I shift with my thumb and also throttle with my thumb. Reminds me of an old old Triumph with their thumb throttles.
I took whatever gas tank I had laying around, I think it's a 3 liter.
The seat post is 1/2" black iron pipe bent at a 90 degree angle to suit my long legs. I rode around with no engine and it's fine, though I may add a gusset for extra strength and more looks. I took the saddle off while welding but it's just an eBay special leather sprung saddle.
I just need to size up my chain running from the secondary to the chainring, add a tensioner to keep that chain away from my throttle linkage, and obviously trim down the 5/8, shaft. I'll have to look at my original napkin math for the top speeds it should theoretically go but from what I remember I kept it mild. Maybe 45 max if it could even go that fast.
I wanted to finally finish this bike before I start on a much more ambitious project and I had everything prepped then shelved it for a year. Got most of the progress done today on my day off thanks to the prep work.
I'm not dead set on this gas tank, I don't like how close it gets to the OHV cover.
