Author Topic: Solo to Sidecar by STD  (Read 132479 times)

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Offline Bruin

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Re: Solo to Sidecar by STD
« Reply #30 on: October 16, 2013, 02:40:32 AM »
BUB AMA want a rider or 132 lbs of dead weight. An old riding buddy (45 years) is going to ride the hack. I figure we ought to build it with a 200 lb load in mind. Harry may be less aerodynamic and weigh more than a lead brick but we have more chuckles.
STD; Speed Team Doo
'82 Honda 500 APS-AF
'70 Triumph 250 MPS-PG
'71 Triumph 250 APS-PF
'70 Triumph 250 M-PG

Offline Bruin

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Re: Solo to Sidecar by STD
« Reply #31 on: October 18, 2013, 12:20:15 PM »
I scrounged up some stainless steel a/c conduit. Split they make some good sized 43 x 60 sheets that I hope to use as fairing material. But I am finding the stainless to be harder to work with my hand tools. My snips didn't hack it, I had to use a grinder cutting disk to split the tube. It's not impossible to work but compared to sheet aluminum I'm going to have to wield a bigger hammer.
STD; Speed Team Doo
'82 Honda 500 APS-AF
'70 Triumph 250 MPS-PG
'71 Triumph 250 APS-PF
'70 Triumph 250 M-PG

Offline Bruin

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Re: Solo to Sidecar by STD
« Reply #32 on: October 18, 2013, 10:43:41 PM »
Trying to visualize the platform location and dimensions. A prone position length, mid shin to helmet plus 7" for a fairing bubble runs from the front of the engine to the back of the rear tire (67"). On a 78" wheelbase it looks looong to me. The track is the minimum 32".
STD; Speed Team Doo
'82 Honda 500 APS-AF
'70 Triumph 250 MPS-PG
'71 Triumph 250 APS-PF
'70 Triumph 250 M-PG

Offline Bruin

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Re: Solo to Sidecar by STD
« Reply #33 on: October 19, 2013, 06:55:20 PM »
Switching the rig's wheel to the right side will keep the rider out of the shifting linkage and away from the chain housing. I can lick the kick start clearance problem with a cutout in the platform, and perhaps a trap door. There is also better access to the bottom rail for mounts. I am moving the gas tank from behind my butt to the hollow below the back bone. It will require a fuel pump. The blue dot is the center of gravity with rider. Still playing with the rig wheel location. The shop dog is Roxy, lead fabricator.
STD; Speed Team Doo
'82 Honda 500 APS-AF
'70 Triumph 250 MPS-PG
'71 Triumph 250 APS-PF
'70 Triumph 250 M-PG

Offline Bruin

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Re: Solo to Sidecar by STD
« Reply #34 on: October 19, 2013, 07:07:48 PM »
With the gas tank moved from behind me bum to the bottom rail, there is clearance to stretch out for better streamlining. The rear pegs will have to be moved to the back of the rear tire but as I read the BUB altered frame/sidecar rules, I can do that.
STD; Speed Team Doo
'82 Honda 500 APS-AF
'70 Triumph 250 MPS-PG
'71 Triumph 250 APS-PF
'70 Triumph 250 M-PG

Offline wobblywalrus

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Re: Solo to Sidecar by STD
« Reply #35 on: October 19, 2013, 11:56:15 PM »
Think stainless is hard to work with?  Try titanium.

Offline bak189

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Re: Solo to Sidecar by STD
« Reply #36 on: October 20, 2013, 12:06:22 AM »
For sidecar road racing the sidecar spindle between 10 to 12 inches lead (ahead) of the rear wheel spindle (on a front engine sidecar, other specs on modern rear engine sidecars) ......However, for LSR (only straight line) 12 to 15 inches has worked well for us..................Remember, as per rules if you run a passenger you need a sidecar fender ....and a handhold other then the sidecar mounting tubing.......Also the minimum of 32 inches track is measured from center of rear tire to center of sidecar tire........................Have fun..............

PS. There are no "altered frame/sidecar rules" only sidecar rules
Question authority.....always

Offline tauruck

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Re: Solo to Sidecar by STD
« Reply #37 on: October 20, 2013, 03:12:03 AM »
Hey Bruin, this is an interesting project. I hear you on the stainless and the lead fabricator looks as nervous as I am about that stubborn material :-D I hope it all works out for you. I'm subscribed. Mikey.

Offline Bruin

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Re: Solo to Sidecar by STD
« Reply #38 on: October 20, 2013, 05:45:43 PM »
Don't you love it when the parts for modifications are found in the scrap bin? The frame builder, Ed Bennett, made a push bar that fit in the rear tubes of the bike. Some creative cutting gave me two very workable mounts. It is nice to have choices. Stretching out and getting the right angle bend out of my knees should pass the wind much better.
STD; Speed Team Doo
'82 Honda 500 APS-AF
'70 Triumph 250 MPS-PG
'71 Triumph 250 APS-PF
'70 Triumph 250 M-PG

Offline bak189

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Re: Solo to Sidecar by STD
« Reply #39 on: October 21, 2013, 11:28:58 AM »
Your Welcome.....................
Question authority.....always

Offline Nortonist 592

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Re: Solo to Sidecar by STD
« Reply #40 on: October 21, 2013, 07:02:50 PM »
I was thinking about your streamlining plans.  Fiberglass is so much easier to use than steel (stainless or otherwise).  All I can do with metal is put dents in it. 
Get off the stove Grandad.  You're too old to be riding the range.

Offline Bruin

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Re: Solo to Sidecar by STD
« Reply #41 on: October 21, 2013, 07:56:49 PM »
I've seen some great fiberglass work on bike fairings, how easy it is depends on your skill set. I've made seat pans and a lumpy fender (glass over an existing fender as a mold). By the time I re-glassed the boo boos and bondo-ed the rest I could have made it out of cash. I do not have a clue how to approach something the size and complexity of a fairing. Denting, bending, fold, mutilate and rivet, that I can do. The key is to keep expectations low.
STD; Speed Team Doo
'82 Honda 500 APS-AF
'70 Triumph 250 MPS-PG
'71 Triumph 250 APS-PF
'70 Triumph 250 M-PG

Offline Peter Jack

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Re: Solo to Sidecar by STD
« Reply #42 on: October 21, 2013, 10:15:23 PM »
I'd really be tempted to find some aluminum. It forms, drills and welds much easier and it's way easier to eliminate sharp edges.  :-D :-D :-D

Even if you have to pay for it you'll be way further ahead.

Pete

Offline Nortonist 592

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Re: Solo to Sidecar by STD
« Reply #43 on: October 21, 2013, 11:54:21 PM »
Aluminum dents.  Fiberglass is easy.
Get off the stove Grandad.  You're too old to be riding the range.

Offline Peter Jack

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Re: Solo to Sidecar by STD
« Reply #44 on: October 22, 2013, 12:06:02 AM »
Bill, I totally agree. Fiberglass is probably the easiest and fastest to use. When I made the suggestion of aluminum it was as opposed to stainless steel. I hate the thought of sharp stainless edges.

Pete