Carbon fiber and classic Triumphs aren't subjects you'll find together very often. Northern California's Underground Bobbers is trying to change that. With extensive experience in the boat industry and a passion for vintage Brit iron, their latest example #72 shows just how well the two go together.
Underground Bobbers
, 2127-D So. Vasco Rd. Livermore, CA94550?_____________________________________________________________________________ ?Owner name, email address, location: ??Seventy Two ?_____________________________________________________________________________ ?Bike name: ??Engine: 72-650 triumph Bonneville, ?_____________________________________________________________________________ ?Engine, year and make, model, modifications: ???1972 Bonneville?_____________________________________________________________________________ ?Frame: ???Original ?_____________________________________________________________________________ ?Fork: ????_____________________________________________________________________________ ?Chassis mods: ???R 120/80-18 Avon Distanzia
F 100/90-19 Avon Distanzia
Dual sport?_____________________________________________________________________________ ?Tire/wheel size and style: ???Carbon Fiber Work?_____________________________________________________________________________ ?Favorite thing about this bike: ???The bike is finished, So another bike?_____________________________________________________________________________ ?Next modification will be: ??Carbon Fiber:
Headlight
Gass tank
Front Fender and Spartan Fin
Battery box
Number plaits
Seat scoop
Seat base
Drainpipe
Cover exhaust
Gauge mounting bracket
Front shock covers??_____________________________________________________________________________ ?Other mods, accessories, cool parts, etc: ????_____________________________________________________________________________ ?Any building or riding story or info you'd like to include:
Farzin (partner who bought the project bike)
ProFiberglass http://www.Profiberglass.com
Rick Price
Rabers Part Mart
Reza Gohary (designer, and fabricator)
Underground Bobbers http://www.undergroundbobbers.com
_____________________________________________________________________________ ?Thanks to: (you may include links to websites here)

The bike is a stock-framed 1972 Triumph Bonneville running 18"/19" Avon Distanzia tires. The list of hand-crafted carbon fiber pieces on the machine is stunning: headlight, gas tank, front fender and spartan fin, battery box, number plates, seat scoop and base, drainpipe, exhaust cover, gauge mounting bracket and front shock covers. Whoa.





Thanks to:
Farzin (partner who bought the project bike)
ProFiberglass
Rick Price
Tim Besser
Rabers Part Mart
Reza Gohary (designer and fabricator)
Underground Bobbers
Last minute note: Word on the street is that this machine will be up for sale on eBay soon...
northeasteric
revmike
Nothing shocking design wise about the bike, but, as I said on JJ a few months back, it would be interesting to see some traditional styling and molding done with carbon fiber and modern techniques. I guess if CAD and computer driven cutters are 'metal fabrication' then carbon fibers and extensive molding has a place as well.
Thanks, good insight... more about the exhaust.
~Rev Mike
revmike
Of course, I only really care about the exhaust covers anyway. LOL
~Rev Mike
erikweste
pangeaspeed
i am over the square mentality that is so popular right now of " lets make a chopper how they did in the 70's and thats the only way to do it " . i am not saying those old bikes arent cool but i am just saying they take very little thought because those bikes are just a snap shot of the past.
at any rate i think this bike is rad. i have done a fair amount of carbon work, and laying up carbon like that is super tricky to make it turn out nice. my hat goes off to you for building a rad bike. is it super insane crazyest bike i have ever seen? no but less is more most of the time.
-ac
damned
dannyb
Kyle
blacklistVISUAL
And to the dude's whining that there's not enough OG parts? Dude... what was the point of a cafe racer back in the day? To shave weight and build a faster bike, dummies. Modern science has provided better ways to achieve these ends, so to pretend that modern materials and technologies don't exist would just be dumb.
Loewe
ROGUESAINT
-Alex
curtisquatch
revmike
On the other hand, chopper/bobbers are supposed to be about stripping away the unnecessary or appurtenance. (not often I get to use THAT word). So ADDING things can be countraculture at time.
What some of us sometimes forget, and as Andy points out, the community has grown beyond a 'chopper' or a 'bobber'. There are plenty of garage built cafes and streetfighters that folks on this here community work on.
The common thread is building and fabbing.
But I would advise a re read, I don't think anyone knocked the work or the craftsmanship, merely where they thought CF fits in to their reality.
I for one would love to have some time to experiment with CF in order to fabricate some things that I don't have the skills for in metal.
.02
~Rev Mike
steffan
GreaserMike
I like the modern nod to the pedestrian slicer and military headlight cover.
kromsucks
damned
Carbon fiber and vintage don't tend to "walk the same path", but, even so, you have to look to creativity and craftsmanship with bright eyes.
The man behind the idea of using some carbon fiber on a cafe racer deserves respect for its vision, if it will make everybody happy that's a whole other story!
My 2 cents.
Dan.
leadfootedkid
eliwolf6
jamesgs4
pangeaspeed
northeasteric
STOP DICK RIDING!
Jethro
Anyway, great fabrication... and man would I like to ring this bike's bell up a canyon outside of the city somewhere. Don't tell Ginger (my chopper)
motoguru
4horsemen20
crkhobbit
What is really funny to me is how people in a community that revolves around customization and being different can complain that something is too customized and different. The irony makes me smile :D
I like it, and I can't say that I wouldn't try to build something along those lines if I had any idea how to work with CF.
TuffLuckTom
sparks
hugodv01
c4ff31n3
Ironsled
Tyler
Tyler
irishbob
doom
I feel the whole "if its not pure, its not right" mentality is for the birds. If you were a true purist you wouldnt hardtail and bike that came stock with shocks and call it a bobber, you would cut shit off the stock bike then call it a bobber.