Kestrel 4000 bike bicycle frameset 56 CM CTT
USD $225.00
Condition : Used
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Kestrel 4000 bike bicycle frameset with Aluminum Fork- PLEASE READ THIS!---The frame is in good shape but there are some scuffs and paint chips on the frame and on the seat tube at the binder bolt- I see no cracks in the frame.
Now look at pictures- I had the rear drops/derailleur hangar aligned. This is a paint crack in the picture- IT IS NOT a structural issue- I had this done at a shop and the hanger is solid- if you don't agree don't buy this- it is fine and not uncommon for a bike this age.
ALSO- RIGHT DOWNTUBE SHIFTER MOUNT- mount was snapped off when I got the frame and there is a replacement, bolted and epoxied to the downtube- THIS is a fix and it works FINE- just looks like a fix.
THE HEADSEAT is NEW and NEWLY INSTALLED- spins beautifully and has no miles on it. THE frame is ready to be built up as a classic ride around bike- I have one of these I am keeping an it always rides nice and elicits attention- THESE were the 1st commercially available carbon fiber frames- own a piece of history that you can ride everyday! Kestrel 4000 56 cm American Road Bike Frame - VTG 80s/90s Frameset ✓ Thoroughly checked over & photographed in detail
The brainchild of composite visionary Brent Trimble, along with former employee's of Trek and Blackburn, Kestrel was launched onto the scene in the late 1980s by Cycle Composites Inc. Beginning with a game-changing monocoque road bike that graced the front cover of magazines and was immediately raced to devastating effect in 1987, followed by the first full suspension carbon MTB (with V Brakes!) in 1988. Through the early adoption of computer aided design and aerodynamics, Kestrel can be credited with creating the genesis of the high-performance carbon road bike that is so prevalent today.
Taking eight years to design, test and prepare for manufacture the 4000 emerged as a fully formed, ready to race super bike in 1987. The first mass-produced carbon monocoque road bike available, it looked like nothing else, and importantly rode like nothing else too. The new technology that went into the building the 4000 resulted in a stiff, comfortable, light, well balanced frame, something of a first for carbon. To top it off it also had a strong aerodynamic benefit with its profiled shape and internal cable routing. As well as the cutting edge technology of the time, renowned bike designer and engineer Keith Bontrager advised on the geometry which pulled together into a phenomenal race bike.
This example of the legendary Kestrel 4000 frame was built in 1990, towards the end of the production run and is spaced for 6 or 7 speed drivetrains at the rear. With the classic Imron white paintwork in decent shape, with a few chips and flakes missing, this frame is ready to give many more years of service.
The frame's been carefully checked by my local bike shop mechanics to confirm the alignment's correct and there's no damage to the threads. The minor issues are listed in the section above. Please take a GOOD LOOK at the detailed photos so you can see the cosmetic condition of the frame before you buy. OVERVIEW Era -
1980s/1990s Country -
American Frame Material -
Carbon Fiber SIZING Seat Tube (ctc) -
54.5 cm and (ctt) - 56cm Top Tube (ctc) -
56 cm Head Tube -
140 mm Chainstay Length -
41 cm Wheelbase - 100
cm TECHNICAL INFO Rear Spacing -
128 mm Front Spacing -
100 mm Seatpost Diameter -
27.2 mm Wheel Size -
700c/28" Brake Fixing -
Recessed Allen Key Front Brake Drop -
45 mm Rear Brake Drop -
44 mm Bottom Bracket Thread -
English/British/ISO Thread Headset Thread -
Standard ISO (24 TPI - British/Italian) Headset Stack Height -
40 mm Fork Crown Race -
26.4 mm (ISO) Shifter Fittings -
Downtube Braze-On Headtube Internal Diameter -
30.2 mm Steerer Internal Diameter -
22.2 mm (Standard) HELP SECTION Seat Tube (ctc) -
we measure from the center of the bottom bracket shell up to the center line of the top tube to give a consistent measurement regardless of frame design (ctc means center to center). Top Tube (ctc) -
this is measured from the center of the head tube to the center of the seat tube, along the center of the top tube. Chainstay Length -
measured from the center of the bottom bracket shell to the center point of the rear dropout. Wheelbase -
measured from the center of the front fork dropout to the center point of the rear dropout. Front & Rear Spacing -
measured from the inside of one dropout to the other. The dropouts on steel frames can be stretched or squeezed a few mm but it's always best to avoid this if possible, aluminum or carbon frames should never be stretched. Brake Drop -
measured using wheels of the relevant size for the frame, as stated in the technical info section. Headset Threads -
although it's generally recommended to match threaded parts exactly, with headsets you can technically mix and match, unless you have French or the obscure old Raleigh threads, in which case you need to stick to that type.
Now look at pictures- I had the rear drops/derailleur hangar aligned. This is a paint crack in the picture- IT IS NOT a structural issue- I had this done at a shop and the hanger is solid- if you don't agree don't buy this- it is fine and not uncommon for a bike this age.
ALSO- RIGHT DOWNTUBE SHIFTER MOUNT- mount was snapped off when I got the frame and there is a replacement, bolted and epoxied to the downtube- THIS is a fix and it works FINE- just looks like a fix.
THE HEADSEAT is NEW and NEWLY INSTALLED- spins beautifully and has no miles on it. THE frame is ready to be built up as a classic ride around bike- I have one of these I am keeping an it always rides nice and elicits attention- THESE were the 1st commercially available carbon fiber frames- own a piece of history that you can ride everyday! Kestrel 4000 56 cm American Road Bike Frame - VTG 80s/90s Frameset ✓ Thoroughly checked over & photographed in detail
The brainchild of composite visionary Brent Trimble, along with former employee's of Trek and Blackburn, Kestrel was launched onto the scene in the late 1980s by Cycle Composites Inc. Beginning with a game-changing monocoque road bike that graced the front cover of magazines and was immediately raced to devastating effect in 1987, followed by the first full suspension carbon MTB (with V Brakes!) in 1988. Through the early adoption of computer aided design and aerodynamics, Kestrel can be credited with creating the genesis of the high-performance carbon road bike that is so prevalent today.
Taking eight years to design, test and prepare for manufacture the 4000 emerged as a fully formed, ready to race super bike in 1987. The first mass-produced carbon monocoque road bike available, it looked like nothing else, and importantly rode like nothing else too. The new technology that went into the building the 4000 resulted in a stiff, comfortable, light, well balanced frame, something of a first for carbon. To top it off it also had a strong aerodynamic benefit with its profiled shape and internal cable routing. As well as the cutting edge technology of the time, renowned bike designer and engineer Keith Bontrager advised on the geometry which pulled together into a phenomenal race bike.
This example of the legendary Kestrel 4000 frame was built in 1990, towards the end of the production run and is spaced for 6 or 7 speed drivetrains at the rear. With the classic Imron white paintwork in decent shape, with a few chips and flakes missing, this frame is ready to give many more years of service.
The frame's been carefully checked by my local bike shop mechanics to confirm the alignment's correct and there's no damage to the threads. The minor issues are listed in the section above. Please take a GOOD LOOK at the detailed photos so you can see the cosmetic condition of the frame before you buy. OVERVIEW Era -
1980s/1990s Country -
American Frame Material -
Carbon Fiber SIZING Seat Tube (ctc) -
54.5 cm and (ctt) - 56cm Top Tube (ctc) -
56 cm Head Tube -
140 mm Chainstay Length -
41 cm Wheelbase - 100
cm TECHNICAL INFO Rear Spacing -
128 mm Front Spacing -
100 mm Seatpost Diameter -
27.2 mm Wheel Size -
700c/28" Brake Fixing -
Recessed Allen Key Front Brake Drop -
45 mm Rear Brake Drop -
44 mm Bottom Bracket Thread -
English/British/ISO Thread Headset Thread -
Standard ISO (24 TPI - British/Italian) Headset Stack Height -
40 mm Fork Crown Race -
26.4 mm (ISO) Shifter Fittings -
Downtube Braze-On Headtube Internal Diameter -
30.2 mm Steerer Internal Diameter -
22.2 mm (Standard) HELP SECTION Seat Tube (ctc) -
we measure from the center of the bottom bracket shell up to the center line of the top tube to give a consistent measurement regardless of frame design (ctc means center to center). Top Tube (ctc) -
this is measured from the center of the head tube to the center of the seat tube, along the center of the top tube. Chainstay Length -
measured from the center of the bottom bracket shell to the center point of the rear dropout. Wheelbase -
measured from the center of the front fork dropout to the center point of the rear dropout. Front & Rear Spacing -
measured from the inside of one dropout to the other. The dropouts on steel frames can be stretched or squeezed a few mm but it's always best to avoid this if possible, aluminum or carbon frames should never be stretched. Brake Drop -
measured using wheels of the relevant size for the frame, as stated in the technical info section. Headset Threads -
although it's generally recommended to match threaded parts exactly, with headsets you can technically mix and match, unless you have French or the obscure old Raleigh threads, in which case you need to stick to that type.
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