View allAll Photos Tagged forkblades

Seller's picture. Nicely kept "dans son jus" with only the rear light and handlebars replaced, and perhaps the brake levers and the saddle.

 

Circa 1947. Vitus tubes, Fobur forkblades, Nervex Legere headlugs. Maxi hubs, Mavic rims and fenders, Comodo rear rack. Le Lewis cantilever brakes and Securité open back levers. Stronglight headset, bottom bracket and crankset. Cyclo in the back with the shifter on the right hand seat stay, Simplex in the front with the shifter on the left hand seat tube.

 

CDF / Cycle De France, based in Saint Etienne, was the successor of RPF / Rivolier Père et Fils, who had already been producing state-of-the-art cyclotouring bikes before World War II. Both marques developed bicycles to compete in the lightweight cyclotouring concourses from the mid 30s to the late 40s.

 

Mating a Follis rack to the Routens rider, which has eyelets just above the ends of the forkblades, I fashioned these adapters. These are version 1.0.

 

Suspended like this, they work well enough to support a handlebar bag. The eyelets on the forks are threaded, and I put extra nuts on the insides to keep the adapters from rotating. However I'm planning something sturdier to take additional panniers and kilos.

Using hacksaw blades as a measuring tool when slotting for dropouts. Building at full speed and feeling good. I was just talking to Hilary yesterday about how I’m not entirely motivated right now in the shop (end of summer blues?). So I’ve been doing some mindless sort of tasks that are part of the bike building process until the real inspiration strikes which happened just now. I had finished listening to the latest Built to Spill album and I was not entirely impressed because I live in the past when it comes to music. So I put on Keep It Like a Secret which came out in 1999. The song “The Plan” came on and everything changed. I felt a physical charge come over me. I was immediately transported back in time to when Modus Operandi was released (Transworld Skateboarding video that had this song in it). Marc Johnson’s part is incredible and Ty Evans and Jon Holland’s videography is perfectly in sync with the song. It is so inspiring to hear the intro to that video part and then to see how all their hard work came together in the end. If I was a skateboarder, I’d to be so pumped to skate right now but instead, I’m channeling it to making bikes and it’s working! I’m so psyched right now. #builttospill #starrett #forkblades #modusoperandi #marcjohnson

New Old Stock / never-built custom frame by Ahren Rogers (builder for his own Banjo Cycles, as well as the 1st gen. of Box Dog Pelicans) in 2006, as a prototype for the then-upstart Velo Orange. Patterned after the Rene Herse "Gentleman" model.

 

Gentleman's (city bike) / bi-laminate (semi-filleted lugged) 650B frame / low trail fork.

ST c-to-c: 53cm

TT c-to-c: 54cm

Wheelbase: 104cm

135mm rear dropout spacing

 

Provisioned for integrated fenders (under-bridge mounts) + lighting (forkblade wiring guides) / racks (dual eyelets front/rear) / chainguard (braze-ons seat and down tube. Designed for 650B tires up to 42mm (Hetres do fine) with 52mm fenders (without requiring any bending), down tube braze-ons, pencil stays, and low trail fork. The top tube and head tubes have semi-filleted lugs, with the remainder of the frame being fully lugged elsewhere.

 

It is getting a handle today, Henry James supplies a blue print for this machine free of charge at the customers request. What a nice fellow.

these are the all aero fork blades that require a special aero fork crown. I do not have one if someone does put a pic up

This is one of the columbus Air fork blade variations that would work with a non-aero standard fork crown. You can see it has a aero profile after the 28x20 section that would go into the fork crown.

Located in Southern California, KVA STAINLESS™ is a privately owned company that provides innovative, high-strength Martensitic stainless steel processing technology and solutions to an industrial and consumer customer base. KVA specializes in first-rate research and development, high quality manufacturing standards, and uncompromising customer service.

 

KVA’s technical staff, with a combined 60 years of experience in thermal processing, metallurgy, automated welding, brazing and mechanical design, have developed numerous proprietary, patent-pending and patented thermal processing, joining and manufacturing methods for Martensitic stainless steels.

 

These stainless steel components were fabricated with KVA Stainless technology to produce lighter weight and stronger components for automobiles and trucks. Component weight can be reduced by as much as 50% with a strength increase up to 18%.

New Old Stock / never-built custom frame by Ahren Rogers (builder for his own Banjo Cycles, as well as the 1st gen. of Box Dog Pelicans) in 2006, as a prototype for the then-upstart Velo Orange. Patterned after the Rene Herse "Gentleman" model.

 

Gentleman's (city bike) / bi-laminate (semi-filleted lugged) 650B frame / low trail fork.

ST c-to-c: 53cm

TT c-to-c: 54cm

Wheelbase: 104cm

135mm rear dropout spacing

 

Provisioned for integrated fenders (under-bridge mounts) + lighting (forkblade wiring guides) / racks (dual eyelets front/rear) / chainguard (braze-ons seat and down tube. Designed for 650B tires up to 42mm (Hetres do fine) with 52mm fenders (without requiring any bending), down tube braze-ons, pencil stays, and low trail fork. The top tube and head tubes have semi-filleted lugs, with the remainder of the frame being fully lugged elsewhere.

 

New Old Stock / never-built custom frame by Ahren Rogers (builder for his own Banjo Cycles, as well as the 1st gen. of Box Dog Pelicans) in 2006, as a prototype for the then-upstart Velo Orange. Patterned after the Rene Herse "Gentleman" model.

 

Gentleman's (city bike) / bi-laminate (semi-filleted lugged) 650B frame / low trail fork.

ST c-to-c: 53cm

TT c-to-c: 54cm

Wheelbase: 104cm

135mm rear dropout spacing

 

Provisioned for integrated fenders (under-bridge mounts) + lighting (forkblade wiring guides) / racks (dual eyelets front/rear) / chainguard (braze-ons seat and down tube. Designed for 650B tires up to 42mm (Hetres do fine) with 52mm fenders (without requiring any bending), down tube braze-ons, pencil stays, and low trail fork. The top tube and head tubes have semi-filleted lugs, with the remainder of the frame being fully lugged elsewhere.

 

Kaisei left, Columbus right

That little fillet was really nice, heavy on the tip, six others were similar, but for me NOT to file them off, All eight have to be spot on, and 24 of them on a full bike. Instead of trying to make the braze perfect, I need to perfect the technique of hiding imperfections with the torch, otherwise I’ll never be able to do 24, and one wrong one means it gets filed, it looks different, so all get filed. It just a rule that I made up because suffering is in my soul.

Maybe, if I have a little blob, at the tip of the scallops is easy or tip of the knife or in between , I could lead it back and pull it into the forkblade somehow. A little journey.

The fillet in the fork blades, I’m really happy with though, but cleaning up the pockets a little anyway. I need some French master to show me some shit, like Peter Weigle.:)

What I should do is make a bunch of mock-ups and just totally be a brazing fool with them, I don’t have to worry about screwing them up, just practice moving the braze around. I mean I have already done that many times, just need more. I think I can do it!

That little fillet was really nice, heavy on the tip, six others were similar, but for me NOT to file them off, All eight have to be spot on, and 24 of them on a full bike. Instead of trying to make the braze perfect, I need to perfect the technique of hiding imperfections with the torch, otherwise I’ll never be able to do 24, and one wrong one means it gets filed, it looks different, so all get filed. It just a rule that I made up because suffering is in my soul.

Maybe, if I have a little blob, at the tip of the scallops is easy or tip of the knife or in between , I could lead it back and pull it into the forkblade somehow. A little journey.

The fillet in the fork blades, I’m really happy with though, but cleaning up the pockets a little anyway. I need some French master to show me some shit, like Peter Weigle.:)

What I should do is make a bunch of mock-ups and just totally be a brazing fool with them, I don’t have to worry about screwing them up, just practice moving the braze around. I mean I have already done that many times, just need more. I think I can do it!

For a 9/8ths steertubed disco bike. I plan on having the blades curve into the dropouts, but there's a little bit of waffle room depending on how I cut the tips off.

 

These are Nova tandem chainstays; they are about as stout as the Nova disc blades, but (a) longer and (b) diametered to match Nova's "old school" 70mm ID biplane crown. This will give me a fork that looks a lot like the first generation NFE's fork, but stout enough to avoid the jackknife defect the one I'm using for a rack jig had.

it is a 12" radius. it clamps in the vise.

Strange cast forkcrown, French size, for triangular forkblades.

That little fillet was really nice, heavy on the tip, six others were similar, but for me NOT to file them off, All eight have to be spot on, and 24 of them on a full bike. Instead of trying to make the braze perfect, I need to perfect the technique of hiding imperfections with the torch, otherwise I’ll never be able to do 24, and one wrong one means it gets filed, it looks different, so all get filed. It just a rule that I made up because suffering is in my soul.

Maybe, if I have a little blob, at the tip of the scallops is easy or tip of the knife or in between , I could lead it back and pull it into the forkblade somehow. A little journey.

The fillet in the fork blades, I’m really happy with though, but cleaning up the pockets a little anyway. I need some French master to show me some shit, like Peter Weigle.:)

What I should do is make a bunch of mock-ups and just totally be a brazing fool with them, I don’t have to worry about screwing them up, just practice moving the braze around. I mean I have already done that many times, just need more. I think I can do it!

Davis Components crowns and classic Reynolds forkblades

Notice the nice dent on the top yube. The downtube and forkblades have similar dents

I've heard others say about theirs, and I agree; this bike's ride feels great. Manufactured in Japan by MIYATA . Miyatas and Univegas were available in alternating frame sizes.

3ttt #2 pista stem and 3ttt pista handlebar, also the open forkblades (fork blades are open at crown and dropouts)

Color is "Schwinn Opaque Blue" Note Chrome on forkblades and chain/seatstays.

brazing in the dropouts into the forkblades