Rear Derailleurs

Cyclo Standard Rear Derailleur + Shifter + Cables: 1940's 1950's - C Hanger - English (Near Mint)

Introduced in 1932 as the British version of the French "Le Cyclo". The two of them basically ruled all the lands as of the cyclotourisme realm until the 1940's. It is a loop cable / Twin-Cable type, and is "neutral normal" meaning there is no spring...

Simplex Route Leger Monobloc Bell Crank Rear Derailleur + Shifter: 1/8" - 1930's 1940's French

This derailleur was fairly similar to the Le Cyclo & Cyclo standard rear derailleurs, consisting largely of a cage with two pulleys, a bell crank, and a chainstay clamp. According to Velobase this version is called "Monobloc" which I could guess...

Simplex Route Leger Monobloc Bell Crank Rear Derailleur + Shifter: 3V - 3/32" - 1930's 1940's French (EXC)

This derailleur was fairly similar to the Le Cyclo & Cyclo standard rear derailleurs, consisting largely of a cage with two pulleys, a bell crank, and a chainstay clamp. According to Velobase this version is called "Monobloc" which I could guess...

Le Cyclo Rear Derailleur / Claw Mount / Cables: 1920's-1940's French Randonneur

Introduced in 1923, the "Le Cyclo" basically ruled all the lands as of the cyclotourisme realm until the 1940's. It is a loop cable type, and is "neutral normal" meaning there is no spring tension on the derailleur in either direction. They were...

Le Cyclo Rear Derailleur / Shifter/ / Spring / Claw Mount / Cables: 1920's-1940's French Randonneur

Introduced in 1923, the "Le Cyclo" basically ruled all the lands as of the cyclotourisme realm until the 1940's. It is a loop cable type, and is "neutral normal" meaning there is no spring tension on the derailleur in either direction. They were...

NOS Le Lewis Rear Derailleur: Alloy - Chainstay Clamp - Two Large Pulleys - 1930's-1940's - Shifter - French - RARE

The Lewis rear derailleur was made in France circa 1934 into the late 1940's. The derailleur is primarily aluminum construction, particularly curious if it was available during the war! It's a pretty unique design, and most similar to the legendary Cyclo...

Campagnolo C-Record A010 Rear Derailleur: 2nd Gen 1987-1989 (Near Mint)

Super rare new old stock example of the 2nd gen Campy C-Record rear derailleur circa ~1987 to 1989.  This second generation was in my opinion the most refined aesthetically out of the three generations.  It is easily distinguished by...

Suntour Superbe Pro RD-5200 Rear Derailleur: Mid 1980's - Friction - Silver (Great)

This mid 1980's Superbe Pro rear derailleur is considered one of the best friction derailleurs ever!  It's super smooth and quiet, and reliable to no end.  Plus, it looks great!  It may not have the prestige of a Campy Super Record, but it...

Suntour Superbe Pro RD-5200 Rear Derailleur: Mid 1980's - Friction - Silver

This mid 1980's Superbe Pro rear derailleur is considered one of the best friction derailleurs ever!  It's super smooth and quiet, and reliable to no end.  Plus, it looks great!  It may not have the prestige of a Campy Super Record, but it...

NOS Simplex JUY 59 Rear Derailleur & Shifter: Riveted Badge - Plunger Push Rod Design - 1959 & 1960 - RARE

The JUY 59 was introduced in 1959 as an updated replacement for the JUY 51.  The overall profile is relatively similar, and the 59 has some significant upgrades.  First it did away with the complicated and not that effective chain tensioning...

NOS Simplex SLJ / Mavic SSC Retrofriction Shifter Left Spring #3667

Do you have a pair of Simplex or Mavic retrofriction downtube shifters that aren't working up to the full potential of these highly efficient models? Likely the culprit is the clutch springs.  These are quite rare, grab them while you can!  If...

NOS Simplex #2560 SLJ Rear Derailleur Lower Tension Spring: Super LJ 5000 / AR 615 NI

We came into a small supply of Simplex rear derailleur rebuild parts! Lower spring for all Super LJ 5000 models (5000 GT, 5000 T, 5000 CT) plus SLJ AR 615 NI / AR-615 Condition New old stock. If you buy our remaining stock you can have the card...

NOS Simplex #2973 Rear Derailleur Upper Tension Spring: Prestige / Criterium

We came into a small supply of Simplex rear derailleur rebuild parts! Upper spring for all Prestige and Criterium models. Condition New old stock. If you buy our remaining stock you can have the card shown in the photo Details Sold...

NOS Huret Jubilee Rear Derailleur Cage Return Spring: #2219 - Short Cage (Lower)

We came into a little supply of Huret Jubilee rear derailleur rebuild parts!  This is the lower spring, technically the derailleur cage return spring.  This one is for short cage derailleurs only Condition New old stock. If you buy the...

NOS Simplex #2975 Derailleur Cage Stop Pin: 10 Pack - Prestige / SX / LJ / ETC (Pack of 10 Pins))

This pin screws into your rear derailleur's outer cage plate and stops the cages rotation when the pin contacts the derailleur body. This is the pin required for Prestige derailleurs, some LJ and SX models, likely others. Condition New old stock in...

NOS Simplex #2975 Derailleur Cage Stop Pin: Prestige / SX / LJ / ETC (Sold Individually)

We came into a small supply of Simplex rear derailleur rebuild parts! This pin screws into your rear derailleur's outer cage plate and stops the cages rotation when the pin contacts the derailleur body. This is the pin required for Prestige derailleurs,...

Campagnolo C-Record Rear Derailleur: Prototype / 1st Gen (Near Mint)

The 1st generation Corsa Record rear mech was in a way a rebellious design.  It was in an era of the radical Dura Ace AX and Suntour's smooth shifting modernized derailleurs, and campy refused to play into their game in the sake of better shifting...

Suntour GT RD-1200 Rear Derailleur: Long Cage - Touring (MINT+ Low Miles)

The Suntour GT from the 1970's was a super smooth shifting derailleur with capability to shift up to 34t cogs and 36t total capacity.  It wasn't sleek looking nor lightweight, but it sure did shift well.  Better than the mighty Cyclone GT...

KCNC K3 Cobweb Chainring: 38t x 104mm MTB Double Outer / 1x - Black (Near Mint Low Miles)

High spec and radical looking chainring from boutique brand KCNC.  They're CNC machined to the max from 7075-T73 aluminum, and have the spiderweb look.  This is the one for weight weenies!  Designed as a mountain bike double crank's outer...

Campagnolo Velox Rear Derailleur: 1970's - Shiny Chrome Red Buttons (Near Mint+ Low Miles)

The Velox was one of Campy's weird lower end offerings in the early to mid 1970's.  It is essentially a short cage version of the touring Gran Turismo, with a few different details.  The Velox has a nicer chrome than the other 70's low end...

Huret Jubilee Rear Derailleur: Short Cage - Non-Drilled - Chainstay Guide Clip (Near Mint+)

The Huret Jubilee was designed as the ultimate derailleur, to commemorate the French company's 50th anniversary.  It featured a drilled cage, adjustable ball bearing jockey wheels, and tiny hardware.  It weighed a scant 150 grams, and is...

SRAM X4 9 Speed Rear Derailleur: Black - Long Cage (NEW)

Affordable and reliable derailleur for SRAM 7/8/9/10 speed shifters with 1:1 ratio  Condition New in box Details Long cage

Frank Spivey(?) Long Cage For Campagnolo Nuovo Record: Drillium - Bullseye Pulleys - 123mm c-c - Cupertino/Spence Wolf (Near Mint+)

This custom extra long cage quite likely came out of Frank Spivey's workshop, alongside the better known yet ultra rare Spence Wolf Alpine.  This one is even longer, at 123mm center to center on the pulley bolts!  The cage consists of two...

Precision Billet ProShift Rear Derailleur: 1990's Anodized Red/Silver, CNC

This is one of the coolest boutique derailleurs out of the 1990's!  It was a direct competitor of the Paul Powerglide as one of the few USA made alternatives to the XTR M900 rear derailleur at the time.  Wide concensus says this Precision is...