welcome to trike talk!........looks like an interesting project. Is the concept trike an actual production trike or is it a "one of" that you are going to reproduce? Also what about the frame that is pictured? used to mock up powertrain and body panels? Please explain about frame you are drawing. similar to one you have? definitley looking forward to this build!
Hi Larry, I found the drawing on the Internet, I like the way it sits (attitude), I was ready to junk a Chinese Quad frame and the two started looking alike except I do like the idea of killing myself with a cheap welds and wall thickness, but yet I want about a 250cc engine, so I will mate the two in a drawing and make the new frame 1.25x.125 wall. Body panels??? Parts bike is from a 250cc Rebel.
the concept trike is a good looking machine.....a worthy project... yes agree, trust your own frame and welding. That machine looks too fast to trust a frame/ welding that is questionable.
HF Chop saw, this 1.25x.120 wall sq. tubing, the cuts are bad for this 2HP motor, I have to use the HF 12" sander 36 grit to get the length to size and the angles correct. Lower frame rails are to size, now will start the lower a-arm mounting brackets, then go to the middle tie with steering and swing arm braces.
Just curious, are those tires and wheels rated for street or highway? They look more like go cart wheels ... or am I missing something.
Welding on the lower control arms done, brackets did not warp from heat, on the other hand the swing arm bracket did, both sides pulled in about 1/8, need to open it back to final measurement. Next will be the lower steering mounts, then the upper steering mounts.
Read more: http://reversetrike.proboards.com/th...#ixzz5JOooGjYr
large welds on one side, means major warp, either minimize welds or use a strong back to pull or push out warp and or twist....sometimes a little force applied and some heat on the offending weld will take out the warp. At work, Bobcat company.....lots of time spent on robot welding sequence,part preload and other considerations.....still heavy mtl. heavy welds, definite problems to solve. On welding fixtures....many times the fixture frame was welded up then sent out to be "normalized" in a large oven....then finally machined. on one off projects like our trikes, become a study in straightening techniques! good luck...looking good!
Thank you Larry these one offs can be a bitch, I should have put that straighten bar in right after tacking, live and learn, but then again I am not a welder... I am still fighting with STRAIGHTNESS, need to be looking at a few more shops that can handle it. My next RT will be really on straightness, I am looking for a table 12" wide by 5ft long, the next RT will require a table 24" wide and 7ft long, so I'm looking at both.
is that your gargoyle sitting there keeping an eye on you??
Rear Tire will change to General G-Max RS 245-40-18 which reads 25.7" highx9.8" wide, so instead of 22" high, now will be 25.7" high.But then again I'm still in mockup...
Last edited by TomyJ; 07-09-2018 at 02:45 PM. Reason: memory fail...
Shock to the right and jack shaft to the left, MAYBE the seat will clear? Front side view will look something like this? IF I do a fiberglass nose piece, It will be with air inlet in mind. The next M/C swap meet will be July 29, will be thinking hard and heavy about the Harley rear rim??? $300. Tire $250. BUT it will look sooooo cool...
HELP! Does anyone have any leads to part numbers for this style bell cranks (2)? I am thinking like local NAPA auto store? And while we're at it, jackshaft sprockets, I am thinking using 2 the same size as the engine sprocket?
Bellcrank probably application specific. In other words, do you know what motorcycle it came off of? You will probably have better luck visiting a motorcycle salvage yard for identifying and locating a matching part.
Chains and sprockets. Your local bearing / industrial supply store will probably be able to help you. Just take your existing motor sprocket in and they can probably spec you some new parts.
Bell crank Napa auto, $55.00 Or make my own?
https://www.ebay.com/itm/KAWASAKI-Ge...IAAOSwOtVaxr07
Need to find specs on dimensions, but there are a lot of these from different models. If you can find one you like on a bike, then search ebay.
The NAPA part probably has a vehicle application attached to it also. Whatever you choose be sure you record it's pedigree so you know when and if you have to replace/repair it.