First off, I'd like to preface this question by saying that I have searched out and read every thread I could find regarding rack mounted engine kits.
While I look forward to someday building a motorized Ratrod, I don't currently have the time to tackle a project like that. For my first MAB I'm looking for longevity, and MPG. I'm willing to use either a 2-stroke or 4, depending on which one gives me the best MPG with my final setup. I'm considering both the GEBE and Staton kits, and since both kits might require the rear wheel to be re-laced, I think the Staton's approach looks more solid. My concern however, is that the Staton gearbox and chain will consume too much energy from a small motor like the Robin-Subaru.
I live at 3400ft, and most of the places I'd like to ride will gain another 500 to 1000ft elevation. Will that create carb tuning concerns with the Tanaka or Kawasaki 2-strokes? Would going with a larger 2-stroke actually improve my fuel economy over the smaller Robin? I read in a previous post that 2-strokes give their best economy by running at 80+% of their max RPMs, so would the smaller 33cc Tanaka give better economy than the 40-43cc engines using the Staton gearbox? Will a larger engine allow me to the bike up a little for lower RPMs, and does that then equate to better fuel economy?
My hometown is small enough that I can easily bicycle from one end to the other in a few minutes w/o an engine, and I only live one mile from work. I want a MAB for toodeling through the countryside and into the mountains. Once outside the city limits, I'm not overly concerned with the sound level of whatever motor I choose. Obviously quieter is better, but for ME, I'll get the warmest, fuzziest feelings by achieving the best MPG average.
I will probably start with a mountain bike frame (a 20yr old 26" Schwinn) but for longer trips, I'd ultimately like to find/build a cruiser. I used to own dual-sport motorcycles, and loved the freedom of riding anywhere my little heart desired. I'd like to replicate that feeling (within reason) with a motorized bicycle. I'd really appreciate some specific feedback regarding what motors, gears, and mileage you all are getting out there in bicycle land. Thanks a bunch.
I.S.
While I look forward to someday building a motorized Ratrod, I don't currently have the time to tackle a project like that. For my first MAB I'm looking for longevity, and MPG. I'm willing to use either a 2-stroke or 4, depending on which one gives me the best MPG with my final setup. I'm considering both the GEBE and Staton kits, and since both kits might require the rear wheel to be re-laced, I think the Staton's approach looks more solid. My concern however, is that the Staton gearbox and chain will consume too much energy from a small motor like the Robin-Subaru.
I live at 3400ft, and most of the places I'd like to ride will gain another 500 to 1000ft elevation. Will that create carb tuning concerns with the Tanaka or Kawasaki 2-strokes? Would going with a larger 2-stroke actually improve my fuel economy over the smaller Robin? I read in a previous post that 2-strokes give their best economy by running at 80+% of their max RPMs, so would the smaller 33cc Tanaka give better economy than the 40-43cc engines using the Staton gearbox? Will a larger engine allow me to the bike up a little for lower RPMs, and does that then equate to better fuel economy?
My hometown is small enough that I can easily bicycle from one end to the other in a few minutes w/o an engine, and I only live one mile from work. I want a MAB for toodeling through the countryside and into the mountains. Once outside the city limits, I'm not overly concerned with the sound level of whatever motor I choose. Obviously quieter is better, but for ME, I'll get the warmest, fuzziest feelings by achieving the best MPG average.
I will probably start with a mountain bike frame (a 20yr old 26" Schwinn) but for longer trips, I'd ultimately like to find/build a cruiser. I used to own dual-sport motorcycles, and loved the freedom of riding anywhere my little heart desired. I'd like to replicate that feeling (within reason) with a motorized bicycle. I'd really appreciate some specific feedback regarding what motors, gears, and mileage you all are getting out there in bicycle land. Thanks a bunch.
I.S.
