About this Bike Frame:
Caygill Cycles Extra Light Race Frame  - *54cm frame for Rider Height  5"6-5"9 
 
About this Bike Frame:
 
Caygill Cycles Extra Light Race Frame  
 
ACCIAIO Crmo Italian Proteo  ( Sticker present but worn)  
 
 *54cm frame for Rider Height  5"6-5"9
 
 Weight of frame 2.2kg
Spacing for wheels :  Front: 100mm / Rear :130mm
Shimano 600 Headset
 
Set up with A Head Included - will need a modern stem 
 
Suitable for 650b wheel set or similar
 
A specially finished custom build  frame made by  Caygill Cycles
 
Under Top tube cable routing for brake.
Aero design  
Nicely made brake bridge
signature lug work of Arthur Caygill bikes
One cable adjuster mounting  - drive side 
Under Bottom bracket cable guides 
nicely made frame
colour work and decals majority is intact
Some marks/chips to paint to frame 
 
Any of the marks can be addressed if you need to - easy colours to match. Personally I don't think it is needed. 
 
Ideally intended for racing but could be suitable for youth with the right wheel size
 
Nice livery of blue, white and red trim
 
Frame probably dates to somewhere in the Late 1980's/1990's
 
Both front and rear have hole for brakes
 
I can't offer an explanation regarding the one adjuster mount unless the front derailleur was used simply to guide the chain. Alternatively the frame came as standard with the braze on clamp and it was not required.
 
Measurements are centre to centre:
 
Top Tube :54cm  
Down Tube 58cm from seatpost entry but 54cm CTC
54cm frame
 
*Additional Info
 
 It's possible this was used for road racing or time trials using a 650b wheel at the front and 700c at the rear.Though it would be a fine line with the brake drop (50mm) and tyre clearance. I would guess at 650b front and back to be honest if that was the case .
 
Ref my notes below about 26"   - This  provides an estimate for you iro brake drop for 650b.
 
I have previously set this up with that combination but did not take  650b brake drop measurements. (of course 650b fit in both front and rear)
 
650b wheels are readily available
 
a 700c at the rear would have a 50mm brake caliper drop requirement. But would not fit in the front
 
Another combination 
 
I have fitted 24 inch junior/youth race wheel (Picture of wheel Set Up) and reach required at back is 85 and front 65  -
this may mean that this option is pushing it a bit , so a slightly larger wheel would be better.
 
 
Rear Wheel Spacing is 130mm I have had a wheel with a 6 speed in quite comfortably. Front 100mm.
 
The bottom bracket was absent when i acquired this so is not included.  Shell measurement is 70mm
 
Shimano 600 headset included.
 
 
With thanks
 
You will be buying a  used frame  , it is without parts, This frame  has some very small marks from storing.Item and general use. It's not new.
 
*54cm frame for Rider Height  5"6-5"9 
 
To see more images of this Bicycle frame please visit this link here* on our Facebook Page
 
Buy today for collection or UK Delivery
 
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Specifications are listed below:
 
 
You will be buying a used bike frame, so please be aware of the following;
 
A note about our used bicycles & Frames. All Items are genuine vintage and whilst in full working order, may also so show signs of age or own some distinguishing marks. As well as these signs of character  there may also be some signs of rust (faint and few) and some signs of mottling on the chrome. Where possible we have tried to show these on photographs. These small imperfections are commensurate with what is expected of a bike of this age.The bikes are not new.