Seatpost Binders & Clamps

Paul Quick Release Seatpost Collar: 30.0mm - Silver & Black (New?)

Paul Component's first product was a set quick releases including seat binder QR back in 1991, and this sleek modern QR seat collar takes the same blade styling. This is appropriate for vintage and modern bikes alike!  Condition Appears new,...

Antique Seatpost Binder Bolt/Nut + Cable Hanger Stop: Steel

Very old cable hanger and binder bolt set, unknown origins.  Condition Average used shape with finish wear and light rust  

Sachs QR Seat Binder + 30.8mm Collar - Vintage 1980's - Black/Chrome (Near Mint)

Nice early MTB seatpost clamp and Sachs QR binder Condition Near mint lightly used shape. Collar is close to perfect. O-ring on nut is cracked, but otherwise QR is in lovely shape Details Black & chrome Diameter: 30.8mm

Locking Security Seatpost Binder Collar + Saddle Clamp Bolt: 28.6mm Clamp

Don't want your saddle and seatpost stolen off your commuter? This set replaces your saddle clamp bolt (for most one-bolt from the bottom seatposts) and your 28.6mm seatpost binder collar. Condition Looks to be very lightly used in retail...

Magistroni (Frejus?) Seat Binder Collar: 28.5mm - Greco-Roman Pattern - 1940's 1950's 1960's- Steel

Cool Greco Roman geometric pattern on a classic Magistroni seatpost clamp. This clamp has been seen on a few Frejus models, though I don't know if this is Magistroni's own design for aftermarket sale or one Magistroni made for Frejus. Condition Great...

NOS Mafac Rear Cable Hanger w/ Guide Pulley Wheel for Mixtie: Binder Bolt w/ Stop Pin (RARE)

This odd contraption is a seatpost bolt mounted cable stop that features a roller wheel to redirect the direction the cable travels.  It is made for mixtie frames where the cable is coming from the bottom making it's way up to the seatstay mounted...

Wolf Tooth Seatpost Clamp Binder w/ Rainbow Oil Slick Ti Bolt upgrade: Blue (MINT <200mi)

Pretty blue anodized seat binder clamp with an upgraded rainbow oil slick titanium bolt! Condition Less than 200 miles, mint Details 34.9mm MSRP w/bolt upgrade: $38

NOS(?) Legnano Seatpost Binder Bolt: Stud & Wedge : 12mm 3pc - Original

Super rare seat binder bolt for Legnano and Frejus bikes from the 1940's 1950's and 1960's. This is the wedge and stud three piece version, 12mm diameter. It is part number 10221 in the 1949 Doniselli catalog. There was a run of reproduction ones done a...

NOS Alloy Seatpost Binder / Stem Clamp Bolt: Hex - Tabbed - M8 x 32mm - 1950's 1960's 1970's Vintage

Nicely made aluminum seatpost binder bolt, likely from the 1950's to 1970's. Ultralight at 7g for the bolt and nut.  If you know who made this please contact me. Condition New old stock, very close to pristine Details Alloy M8 x...

Olmo Seat Binder Collar Made By Magistroni: 28.6mm - 1940's 1950's - Steel

Early OLMO seatpost binder collar clamp, made by Magistroni who made collars for many builders.  This was used on a wide swath of models/years by Olmo in the 40's 50's and maybe into 60's. Condition Very good used shape. Collar itself has general...

NOS DKG Bolt On Seat Clamp Binder: 30mm - No Logo 1980's - 1990's - Black

This is an early version of the DKG seatpost clamp, identified by the lack of a logo on top.  These came to me from a shop that closed in the 1990's.   DKG Ross Shafer on the Salsa Flip Off levers & Flip Lever clamp, as evidence by the...

NOS Salsa Flip-Lock QR Seat Binder: 35mm - No Logo 1990's - Black

Rare no logo seatpost binder clamp w/ QR. This 1990's version differs from the modern ones with its contoured lever face, lack of a decal on the lever, & black spacer pieces vs the modern's silver.  Maybe this is the last piece to finish your...

NOS Salsa Flip-Lock QR Seat Binder: 30mm - No Logo 1990's - Black

Rare no logo seatpost binder clamp w/ QR. This 1990's version differs from the modern ones with its contoured lever face, lack of a decal on the lever, & black spacer pieces vs the modern's silver.  Maybe this is the last piece to finish your...

NOS Teledyne Titan Seatpost Binder Bolt: RARE! - Chrome

Is your 1970's titanium Teledyne Titan frame missing it's unique post binder bolt?  This is the original in NOS condition! It will work just fine for other frames as long as the width is right.   Its a great alternative to the Campagnolo...

NOS Suntour Quick-Band Seatpost Binder QR Clamp: For Lawwill Pro Cruiser - 28.6mm - #1091 - "Quick Pattern" (STUPID RARE!)

Every now and then, you come across that unicorn holy grail part, and this is one of those times! This is a mid 70's to about 1982 Suntour "Quick Band" quick release seat post clamp, that came stock on ~1978 to 1982 Mert Lawwill-Knight Pro Cruiser. ...