jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Feb 26, 2021 8:18:15 GMT -5
They slide down the gunnel holes on a pick up truck. Super lightweight if made of aluminum. Small and easy to store. May work best with mountain bikes due to possible fender interference. All contact is on the tires. Prevents scratches and bent cables. Holds bike firmly in place on the roughest of roads. No chance of tearing hitch mount bike rack off bumper when 4wd'ing the really rough stuff. This bike is electric and is heavier at 58 pounds and 500 watts. Some ebikes much heavier when equipped with 1000-2000-5000-10,000 watt motors along with heavier batteries. Ebikes are going to be very popular. Perhaps racks need to be re-engineered for their added weight. Slide only the back holder out/in when unloading/loading. I had woken up the first beautiful day in months and wanted to drive out to a new mountain bike course. Had an inadequate rack for this bike all last year and decided I could not leave the house without a rack solution. Sat down and did an intense 30 minute brainstorm that burned 1000's(millions ??) of calories(ha ha). Spent a couple of hours cutting measuring welding. Impromptu design ends up being a hit go figure.
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Brian
fully equipped rock polisher
Member since July 2020
Posts: 1,506
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Post by Brian on Feb 26, 2021 9:03:54 GMT -5
That’s a great design! 30 minutes of brainstorming well spent. From the looks of it, you could even expand the design to hold multiple bikes.
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Post by greig on Feb 26, 2021 9:30:36 GMT -5
Looking good. I always appreciate a nice rack.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Feb 26, 2021 10:20:43 GMT -5
That’s a great design! 30 minutes of brainstorming well spent. From the looks of it, you could even expand the design to hold multiple bikes. One of the requirements was to load/unload without climbing up on the bed. Easy to duplicate the same holder on the other side of the truck bed for #2 bike. As you mention the real winner would be a holder that held 4 bikes side by side. 4 bike suggestion: Perhaps a front bridge and rear bridge across the bed. The front bridge can stay in place. To unload bikes lift rear bridge away. To remove bikes simply pull the bike's front tire out of the front tire holders from the rear of the truck. The load bikes the two outside bikes can be rolled and pressed into the tire holders from the ground. The two inner bikes would likely force you to climb up on the bed to insert the front tire into holder lest long arms were involved. One plan...
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Feb 26, 2021 10:22:00 GMT -5
Looking good. I always appreciate a nice rack. Better come up with a slip over bra for those girls.
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Post by jasoninsd on Feb 26, 2021 11:43:45 GMT -5
I'd say you hit a flippin' home-run on this one James! It's freaking genius!
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Post by HankRocks on Feb 26, 2021 13:19:32 GMT -5
Ok, who had "4 WD P/U truck Bike Holder"? in the what's Jim gonna build next contest.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Feb 26, 2021 16:49:39 GMT -5
I'd say you hit a flippin' home-run on this one James! It's freaking genius! It is my favorite so far Jason. Thanks. These type of devices rarely work out the first time. Must be living right
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Feb 26, 2021 17:01:35 GMT -5
Ok, who had "4 WD P/U truck Bike Holder"? in the what's Jim gonna build next contest. What tickled me was my personal method of motivating creativity Henry. It would embarrass me to share. Let's just say creativity is a strange organism that can be mysteriously powerful.
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Post by Garage Rocker on Feb 27, 2021 7:32:13 GMT -5
Just jamesp doing genius jamesp things. Nothing to see here. Brilliant, buddy.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Feb 27, 2021 9:53:54 GMT -5
Just jamesp doing genius jamesp things. Nothing to see here. Brilliant, buddy. Thanks, I think mental illness is a better description than brilliant. Accepting inefficiency/unreliability/poor functionality just does not gel with me Randy. Such things are a crippling curse for some reason. They MUST be resolved or corrected or improved regardless of difficulty.
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saxplayer
fully equipped rock polisher
Member since March 2018
Posts: 1,327
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Post by saxplayer on Feb 27, 2021 10:13:57 GMT -5
Just jamesp doing genius jamesp things. Nothing to see here. Brilliant, buddy. Thanks, I think mental illness is a better description than brilliant. Accepting inefficiency/unreliability/poor functionality just does not gel with me Randy. Such things are a crippling curse for some reason. They MUST be resolved or corrected or improved regardless of difficulty. Jim, something I was thinking about: your truck has those ridges in the truck bed.. if you were to mass manufacture this, how would you account for different truck beds with/without those ridges? Were your measurements and tolerances loose enough it wouldn't matter?
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Feb 27, 2021 14:01:00 GMT -5
Thanks, I think mental illness is a better description than brilliant. Accepting inefficiency/unreliability/poor functionality just does not gel with me Randy. Such things are a crippling curse for some reason. They MUST be resolved or corrected or improved regardless of difficulty. Jim, something I was thinking about: your truck has those ridges in the truck bed.. if you were to mass manufacture this, how would you account for different truck beds with/without those ridges? Were your measurements and tolerances loose enough it wouldn't matter? The vertical rods don't even touch the bed Grant. There is about a 1/4" to 1/2" gap between the tip and the bed. They are 1/2" solid steel rod and darn rigid without making contact with bed. In other words I could cut all 4 of them 2 inches shorter and they would have the same restraining capability. As long as they are long enough to contact the fattest part of the lower section of the tire. But they would have to be custom made for different models of trucks. For instance my newer Tundra has the same body but the bed gunnels are about 5 inches taller. So the vertical rods would have to be longer. I have no idea if those rectangular holes these supports are inserted in are even a standard size. The 2000 half cab and 20006 extra cab Tundra both have 2" x 1.4" slotted holes but the bigger cab has a slightly shorter center distance of ~63.3" verses 64" for half cab... So someone would have to have measurement data base for different trucks of course. Planning on a product line - have at it. It may be a winner. I love mine. Others like them too. I have a fire pit business that is still roaring from the Covid bomb. Bike racks are all yours !(I'd love to have 1% of gross royalty he he). My then 64 year old kinematics teacher invented the linkages on those hydraulic door closers just out of college. The company that first hired him had a royalty incentive. At 5% he was retired for over 35 years living fat from age 25. Lucky dog. Just loaded bike. Heading off to ride this nice Saturday. But I forgot which trail system I had planned to ride lol. Getting old sucks.
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saxplayer
fully equipped rock polisher
Member since March 2018
Posts: 1,327
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Post by saxplayer on Feb 27, 2021 14:05:59 GMT -5
Jim, something I was thinking about: your truck has those ridges in the truck bed.. if you were to mass manufacture this, how would you account for different truck beds with/without those ridges? Were your measurements and tolerances loose enough it wouldn't matter? The vertical rods don't even touch the bed Grant. There is about a 1/4" to 1/2" gap between the tip and the bed. They are 1/2" solid steel rod and darn rigid without making contact with bed. In other words I could cut all 4 of them 2 inches shorter and they would have the same restraining capability. As long as they are long enough to contact the fattest part of the lower section of the tire. But they would have to be custom made for different models of trucks. For instance my newer Tundra has the same body but the bed gunnels are about 5 inches taller. So the vertical rods would have to be longer. I have no idea if those rectangular holes these supports are inserted in are even a standard size. The 2000 half cab and 20006 extra cab Tundra both have 2" x 1.4" slotted holes but the bigger cab has a slightly shorter center distance of ~63.3" verses 64" for half cab... So someone would have to have measurement data base for different trucks of course. Planning on a product line - have at it. It may be a winner. I love mine. Others like them too. I have a fire pit business that is still roaring from the Covid bomb. Bike racks are all yours !(I'd love to have 1% of gross royalty he he). My then 64 year old kinematics teacher invented the linkages on those hydraulic door closers just out of college. The company that first hired him had a royalty incentive. At 5% he was retired for over 35 years living fat from age 25. Lucky dog. Just loaded bike. Heading off to ride this nice Saturday. But I forgot which trail system I had planned to ride lol. Getting old sucks. Ha, no new business for me! I thought you were going to be producing them but might have misread! Either way - it is a pretty cool little solution for your bike!
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