2005 Briggs Bobber Indian Style
Bob Decker from Indiana, United States of America sent us these pictures of his very pretty 2005 Briggs Bobber which he designed and built to capture the looks of the classic Indian 101 Scout.
Bob: "I built this Briggs Bobber when I was 67 yrs old in 2005 and it was my first motorcycle. I have always found the Indian motorcycles to be very interesting and especiallly the 101 Scout because of its reputation as the worlds best handling motorcycle."
Bob: "I was never going to get to ride a 101 so I decided to come as close as possible to replicate the handling and performance of the 101. Research was tough because I was not networked the people I knew that owned motorcycles were not knowledgeable about rake and trail and frame geometry and such."
Bob: "So the project goal was to build a good handler which would run tops at 70 mph. Everything worked out very well. The bike handles extremely well and has more than adequate power for riding two lanes and secondary roads in southern Indiana. I take it it annually to ride the Blue Ridge Parkway in North Ccarolina each summer and it is perfect for that trip. It draws a lot of attention and is a ton of fun to ride."
Bob's Briggs Bobber Specifics
Bob listed the following specifics for his Briggs Bobber:
• Frame: Probably nos aftermarket hardtail from the 60s;
• Wheelbase: 58 in.;
• Rims: 18 x 2.15;
• Tires: 18 x 4;
• Hubs: Honda 350;
• Brakes: Drum;
• Swept Area: 56.5 sq. in.;
• Brakes Loaded: 8.8 lbs. per sq. in.;
• Curb Weight: 300 lbs. / 200 lb. rider - 500lbs.;
• Fork: Homemade;
• Rake: 25 degrees;
• Trail: 3 in.;
• Suspension: Leaf spring over leading rocker;
• Floorboards: 24 in. Wide and 8 in. clearance;
• Lean: 35 degrees;
• Ground Clearance: 6 in.;
• Axle to Ground: 13 in.;
• Crankshaft to Ground: 11.75 in.;
• Handlebars: Lowrise buckhorns 31" wide with 5" rise on 3.5" dogbone risers;
• Grips: Anderson style;
• Engine: V twin ohv Briggs and Stratton;
• Displacement: 34.75 cu. in. / 570 cu. cent.;
• Bore: 2.83;
• Stroke: 2.76;
• HP: 18 @ 3600 rpm;
• Torque: 30 ft. lbs. @ 2400 rpm;
• Exhaust: two into one header 1.75 in. auto;
• Drive Train: Comet ind torque converter;
• Drive Clutch: 44 c magnum;
• TQ Overall Ratio: 2.43 to 1;
• Final Drive: 428 chain sprockets / 15t into 60t for 4 to 1 ratio;
• Speed: 70 mph @ 3600 rpm;
• Frame Geometry: Cloned from Indian 101 Scout;
• Steering Geometry: Cloned from Indian 101 Scout.
Bob: "The comet torque converter gives me a wide range from 10 to 1 low gear to a high gear of 4 to 1, which again is about the range of the early motorcycles."
Bob: "Am now working on another Bobber project and will answer any questions you may have.
Thank you, Bob Decker"
A Briggs Bobber
We here at Bobber Republic would like to express our appreciation for the creative craftmanship of people like Bob Decker who in pursuit of their dreams dare to think outside the box, navigating between the freedom of art and the limitations of science.
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