justpassinthru
New Member
- Local time
- 10:06 PM
- Joined
- Feb 3, 2022
- Messages
- 12
Hi all...been lurking for a while, great group here. Have a project. I am building a motorized bike with trailer that can get my wife(she doesn't ride bikes) and myself back over 130 miles of broken Seattle (Olympia) to South of Portland interstate highway. We spend time at our sailboat moored several hours away in South Puget Sound. Based on updated big one earthquake analysis the main Interstate freeway I5 will be even more toast then previously through most of Washington. Yes extreme thinking but lets put that aside.
So I need to be able to haul 330 lbs of people and 50 lbs of gear, 380 lbs. That will be the sole use of and purpose for this build. I have obtained an aluminum two wheeled trailer that hitches to the seat post (will be customized). (Will make sure trailer can handle weight) I just obtained a Diamondback, 26 inch wheel 20 inch steel frame used mountain bike.
Hoping for some of the great critique I have learned immensely from on this site.
4 or 2 stroke? Speed not a high priority, 15-20 mph is fine. Reliability for that 130 miles, critical. Will be carrying fuel with us so optimizing fuel usage will save weight.
What I think I should be concerned about...
reliable clutch, will carry a spare but with the excess weight and some gradual inclines, need a good clutch setup.
reliable carburetor
rear sprocket tooth size?
spoke or solid hub chain wheel setup?
prefer to not go as complex as a stub axle setup
Brakes sufficient?
single chain transmission acceptable?
Ditch the 21 speed derailleurs? I will be losing the shifting handle bar grip shifters...
We will probably stop and take breaks but would "like" the option to ride further if we didn't want to expose ourselves to potential lawlessness.
Bike and trailer will break down to be stored in trunk in several pieces, would like the engine to be able to be placed on its side (with oil and fuel removed)
Used the template described on a you tube 10 1/2 by 10/12 with one corner trimmed to confirm engine fit in frame, barely fits...tight..
Any feedback greatly appreciated....
So I need to be able to haul 330 lbs of people and 50 lbs of gear, 380 lbs. That will be the sole use of and purpose for this build. I have obtained an aluminum two wheeled trailer that hitches to the seat post (will be customized). (Will make sure trailer can handle weight) I just obtained a Diamondback, 26 inch wheel 20 inch steel frame used mountain bike.
Hoping for some of the great critique I have learned immensely from on this site.
4 or 2 stroke? Speed not a high priority, 15-20 mph is fine. Reliability for that 130 miles, critical. Will be carrying fuel with us so optimizing fuel usage will save weight.
What I think I should be concerned about...
reliable clutch, will carry a spare but with the excess weight and some gradual inclines, need a good clutch setup.
reliable carburetor
rear sprocket tooth size?
spoke or solid hub chain wheel setup?
prefer to not go as complex as a stub axle setup
Brakes sufficient?
single chain transmission acceptable?
Ditch the 21 speed derailleurs? I will be losing the shifting handle bar grip shifters...
We will probably stop and take breaks but would "like" the option to ride further if we didn't want to expose ourselves to potential lawlessness.
Bike and trailer will break down to be stored in trunk in several pieces, would like the engine to be able to be placed on its side (with oil and fuel removed)
Used the template described on a you tube 10 1/2 by 10/12 with one corner trimmed to confirm engine fit in frame, barely fits...tight..
Any feedback greatly appreciated....