What were some of the common 'trick' modifications to road bikes back in the 70s/80s?
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I figured id share some of the stuff that was done around here during soviet times that i have found and heard from the old timers.
Ill start with the most common ones-
Toy car tire cut in half as something that kept the hub shell clean.
Blue electrician tape used as handlebar wrap, on rare occasions seen red also.
Forks and frames being chromed.
Derailleur hanger stops ground/filed deeper for more chain wrap.
"aero" brake levers made from normal levers by drilling, cable stop usually was the face of the lever.
Bikes painted like something from the west. Red with a chrome fork was very popular most likely due to our top racers having red colnagos.
Everybody wanted the plastic saddles.
Common cyclocross mods were widened/bent dropbars, custom made smaller front chainrings and massive dork discs. Also heard somebody repairing/improving cyclocross tubulars by sewing a track tubular inside it.
Seen some drillium also, but more rare than you would expect.
Any western parts.
Rare mods-
Heavily modified frames with internal routing for time trials, had one guy describe what he built in great detail, sadly he only had the rear disc wheel left from it. Lopro design.
Fork mounted handlebars.
Custom hubs, headsets, bottom brackets.
Titanium parts.
Ill start with the most common ones-
Toy car tire cut in half as something that kept the hub shell clean.
Blue electrician tape used as handlebar wrap, on rare occasions seen red also.
Forks and frames being chromed.
Derailleur hanger stops ground/filed deeper for more chain wrap.
"aero" brake levers made from normal levers by drilling, cable stop usually was the face of the lever.
Bikes painted like something from the west. Red with a chrome fork was very popular most likely due to our top racers having red colnagos.
Everybody wanted the plastic saddles.
Common cyclocross mods were widened/bent dropbars, custom made smaller front chainrings and massive dork discs. Also heard somebody repairing/improving cyclocross tubulars by sewing a track tubular inside it.
Seen some drillium also, but more rare than you would expect.
Any western parts.
Rare mods-
Heavily modified frames with internal routing for time trials, had one guy describe what he built in great detail, sadly he only had the rear disc wheel left from it. Lopro design.
Fork mounted handlebars.
Custom hubs, headsets, bottom brackets.
Titanium parts.
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#102
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My favorite examples I see people post are the ones where the holes are perfectly spaced and chamfered. I don't own anything where drillium would be appropriate for, but I sure think it looks wonderful when done well.
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Last edited by Chuck M; 12-27-23 at 07:27 AM.
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here's a treasure trove of Frank Spivey parts and drilling jig pictures, on Chuck Schmidt's Velo Retro site:
Velo-Retro: Peter Johnson
Of course the Peter Johnson frame is to die for also.
Velo-Retro: Peter Johnson
Of course the Peter Johnson frame is to die for also.
His big gripe was the chainrings, the punched out “kidneys” in the chainrings would require a repositioning of the rotary table center between the five segments. One could not tell afterward, he was talented.
the seatposts he did got a bit busy, the Super Record headsets were just flourish.
‘I had him do a simple flute milling on my Campagnolo seatpost, still have it on the bike.
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Have we mentioned the "Mexico treatment" for Campy cranks yet?
I don't know the true history of this method of taking metal off of the Campy cranks, but my understanding is that is based on what was done for Eddy's hour record bike.
Here's a shot of the Campy cranks on my '82 Olmo....
The main modifications are the slots in the spider arms, and the thinning and rounding of the crank arm cross section.
Of course, the anodization is gone, so they do need to be polished periodically to really get them to shine.
Steve in Peoria
I don't know the true history of this method of taking metal off of the Campy cranks, but my understanding is that is based on what was done for Eddy's hour record bike.
Here's a shot of the Campy cranks on my '82 Olmo....
The main modifications are the slots in the spider arms, and the thinning and rounding of the crank arm cross section.
Of course, the anodization is gone, so they do need to be polished periodically to really get them to shine.
Steve in Peoria
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Drillium is often brought up today but really wasn't common. It 'went through' fad.
That said, the thread title was inclined toward 'trick' mods. Have personally done some drillium but also to mention where shedding minuscule grams was fairly easy and quick. That being in steel freewheel cogs.
Remove freewheel and cogs.
Simple holding jig consist of a wooden board and two screws not fully in. The screws are spread just enough between width of the cogs teeth.
Clamp the jig / board to a drill press table.
Determine desired size of hole and spacing/ consider first drilling a pilot hole.
Manually hold the individual cog by a pliers.
Drill, baby, drill-
That said, the thread title was inclined toward 'trick' mods. Have personally done some drillium but also to mention where shedding minuscule grams was fairly easy and quick. That being in steel freewheel cogs.
Remove freewheel and cogs.
Simple holding jig consist of a wooden board and two screws not fully in. The screws are spread just enough between width of the cogs teeth.
Clamp the jig / board to a drill press table.
Determine desired size of hole and spacing/ consider first drilling a pilot hole.
Manually hold the individual cog by a pliers.
Drill, baby, drill-
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I used Stump dropouts on the first 3 frames I made for myself, wish I still had those frames but I sold them one at a time in my early 20s when I was too poor to pay rent.
Here's a modest sample pic of how crazy that guy went on making a "special" bike:
Not all his bikes were quite so over-the-top.
Me, I don't like seatpost flutes that go down into the frame, channels for rain and road grit to get into the frame/post interface. I guess like with most SoCal bikies, rain was not much on his mind...
I saw a Davidson once where the flutes were different lengths at the bottom to match the swoop at the top of the seat lug, all stopping few mm away from the frame.
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I hardly knew Bud (Art Stump), only visited twice in the '70s, but I loved his work and he was so nice to me. He gave me a lot of pointers (I was an apprentice framebuilder at the time), took the time to show me everything from his jig and frame assembly process, to the parts that he cast or machined, to his side projects like a Stanley Steamer and a very old horse-drawn carriage he was restoring, super fancy like for an aristocrat. He was casting brass decorative brackets and such that were missing to put it back to completely like new. Maybe for a movie company? (If I asked at the time, I don't remember now.)
I used Stump dropouts on the first 3 frames I made for myself, wish I still had those frames but I sold them one at a time in my early 20s when I was too poor to pay rent.
Here's a modest sample pic of how crazy that guy went on making a "special" bike:
Not all his bikes were quite so over-the-top.
Me, I don't like seatpost flutes that go down into the frame, channels for rain and road grit to get into the frame/post interface. I guess like with most SoCal bikies, rain was not much on his mind...
I saw a Davidson once where the flutes were different lengths at the bottom to match the swoop at the top of the seat lug, all stopping few mm away from the frame.
I used Stump dropouts on the first 3 frames I made for myself, wish I still had those frames but I sold them one at a time in my early 20s when I was too poor to pay rent.
Here's a modest sample pic of how crazy that guy went on making a "special" bike:
Not all his bikes were quite so over-the-top.
Me, I don't like seatpost flutes that go down into the frame, channels for rain and road grit to get into the frame/post interface. I guess like with most SoCal bikies, rain was not much on his mind...
I saw a Davidson once where the flutes were different lengths at the bottom to match the swoop at the top of the seat lug, all stopping few mm away from the frame.
Great insight on the SP fluting and I fully agree, the ones that go below the lug have always screamed amateur/production hack to me, an egregious faux pas even before you consider water intrusion.
Never seen a custom fluted one that matched the SL but that would be perfect and could still be done high enough to leave wiggle room before they went into the lug.
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Yeah but to be perfect, there's no wiggle room because the amount of post below the flutes has to match the amount above them. Or else get outta town. Sorry, I don't make the rules!
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Agreed, no worries, what I'm saying is the lower end of the flutes could match the lug profile even if there was a bit of space between without the flutes being in the ST, maybe no more that 10-15mm below the flutes for micro adjustment of the SP up or down.
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Had there been bar tape under the tree, we'd be looking at a picture of the whole bike. Arghhh... This is a 1973 Shorter time trial bike from the UK. Very much like the one Alf Engers ("king alf") rode during his career. The first person to go below 50 minutes in a 25 mile time trial.
Last edited by uncleivan; 12-27-23 at 07:15 PM.
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But.. I do like that arrangement for the brake's straddle cable. The dual pulleys might be hard to implement, but I like the idea of getting the hangar for the straddle cable located out where you can access it. It seems like other bikes with the Hellenic stays like to put the hanger immediately in front of the seat tube. That seems like it is fairly constrained and requires you to get everything positioned just right in order for it to work out. Maybe not?? ... but at a glance, that's the feeling I get.
Nice that some of that creativity got channeled into a practical detail.
Steve in Peoria
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Another passing observation is that both dddd ’s and Luis Ocana’s Speedwells appear to have the rear wheel axle set more or less in line with the seatstays, and have similar-sized tubulars, although Ocana’s frame looks like it has several cms less clearance behind the seat tube. Both bicycles have good clearance below the fork crown and brake bridge.
Perhaps Ocana had a custom frame built to his personal specification.
Perhaps Ocana had a custom frame built to his personal specification.
Back to the topic at hand, I built my Speedwell with a few other weight weenie touches (some previously mentioned above): Bullseye pulleys, Regina hollow-pin chain, lightweight Cyclone mechs, Weyless pedals, alloy-railed Ideale saddle, O.M.A.S. Ti BB, 3ttt superleggera bars, alloy toe clips, Hi-E hubs, Robergel Trois Etoiles spokes, Record du Monde (front) rim. I’ve since added Hi-E bottle cages.
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'72 Cilo Pacer • '72 Peugeot PX10 • '73 Speedwell Ti • '74 Nishiki Competition • '74 Peugeot UE-8 • '86 Look Equipe 753 • '86 Look KG86 • '89 Parkpre Team Road • '90 Parkpre Team MTB • '90 Merlin Ti
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When I was a teenager, my bike was a 1975 Raleigh Gran Sport, a fairly light bike. I met a guy in Central Park who urged me to upgrade to tubular wheels and tires. He said they would make my bike "stiffer." I followed his advice, found some wheels from a Viscount Aerospace Pro, and lived the tubular life. American Youth Hostels had an office in Manhattan and offered a seminar on the care and feeding of the tires, and that proved useful. Looking back at all the labor it involved, it seems pretty crazy, but it was a good way to get lightweight wheels, and they did transform the bike.
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Back in the 70’s always had a needle and thread for the emergency tire repair… I was too broke to afford a spare… More than once I had to do a roadside locate the leak, cut the stitching, pull the tube, patch, sew back up, stick it back on, pump it up and pray…… It was, what it was…
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I do like that arrangement for the brake's straddle cable. The dual pulleys might be hard to implement, but I like the idea of getting the hangar for the straddle cable located out where you can access it. It seems like other bikes with the Hellenic stays like to put the hanger immediately in front of the seat tube.
A Trek supposedly built by one of their builders for himself.
An Argos (England) with elbow macaroni instead of rollers.
And probably my favorite, a Routens with the brake cable piercing through the seat tube below the seatpost.
Sorry for straying so far off the original subject of this thread.
-Mark B
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@bulgie - obviously the extended rear straddle cables work, but being aware how adjusting the straddle cable on a Mafac brake changes the feel of the brake, I wonder if it is really acceptable.
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Here are a few other variations on the theme:
A Trek supposedly built by one of their builders for himself.
An Argos (England) with elbow macaroni instead of rollers.
And probably my favorite, a Routens with the brake cable piercing through the seat tube below the seatpost.
Sorry for straying so far off the original subject of this thread.
-Mark B
A Trek supposedly built by one of their builders for himself.
An Argos (England) with elbow macaroni instead of rollers.
And probably my favorite, a Routens with the brake cable piercing through the seat tube below the seatpost.
Sorry for straying so far off the original subject of this thread.
-Mark B
I might be too practical, but running cables through the seat tube always seemed like something done to look good, but imposed some inconveniences on the user. Does the user just cut the post short and avoid having the cable go through it?
Still... it is distinctive and does have its charms.
Looking through my photos from a couple of Classic Rendezvous gatherings, I found one Jo Routens and one Charrel with this arrangment. The Routens was displayed by Mr. Della Rossa, and it was beautiful! The rest of the pics are on Flickr.
The desire to run cables through frame tubes might come under the heading of "stuff done to reduce weight", so perhaps it's not completely off topic?
Steve in Peoria
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@bulgie - obviously the extended rear straddle cables work, but being aware how adjusting the straddle cable on a Mafac brake changes the feel of the brake, I wonder if it is really acceptable.
Mafac always intended these brakes to have long straddles anyway, going by their ads.
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steelbikeguy -
so they are long and historically endorsed.
classic rendezvous gatherings, in the telephoto rear view mirror now.
so they are long and historically endorsed.
classic rendezvous gatherings, in the telephoto rear view mirror now.
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This guy's cable routing is ahead of its time. looks like a milled out head tube and some pretty extreme drillium.
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What I find interesting here are Universal brakes in the Colnago era for Eddy. Note the drillium is not machine shop grade. White tape. Short cable arcs. Should note Campagnolo levers.
from An eBay listing.
from An eBay listing.
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I can't believe no one has opined on the performance increases provided by installing these babies.
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Absolutely! Have you ever seen an America's Cup racing yacht that did not have these on their sails? Monitoring apparent wind on a sailboat as well as on a bicycle is crucial.
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