Road¶
Name |
Specification |
|---|---|
Brand |
Giant |
Model |
CFR 1 |
Year |
1991 |
Serial |
GC4B996 |
Frame |
Carbon bonded aluminium lugs |
Frame Size |
55 |
Fork |
GT Carbon |
Weight |
9.58kg |
Head Set |
Shimano 600 |
Stem |
3T Motus 130mm |
Bars |
3T Forma SL 44cm |
Saddle |
Selle Turbo |
Seatpost |
Giant Aero - Mike Burrows |
Bottom Bracket |
GXP |
Cranks |
SRAM Force |
Front Sprocket |
Shimano 53/39 |
Rear Sprocket |
Shimano 8 Speed 12-22 |
Pedals |
Shimano SPD |
Wheels |
Spinergy Rev-X |
Tyres |
Continental 23 |
Front Brake |
Shimano 600 BR-A550 |
Rear Brake |
Shimano 600 BR-A550 |
Chain |
Shimano Hyperglide |
Deraileur |
Shimano FD6401/6400RD |
Spinergy¶
The beautiful Spinergy Rev-X wheels were produced in four different variants from the early 1990s until 2001 - when the UCI managed to have them banned.
These wheels are rather notorious for their lateral rigidity - or lack thereof. Spinergy produced something called the X-brace - of which it is impossible to find originals. These are small I-beams which can be glued between each bladed spokes - tied together and providing more rigidity - and (hopefully) consistent spring rebound.
I have managed to find the necessary CAD to print your own. I am unconvinced however; that standard nylon filament actually produces an item of sufficient compressive strength to make any noticeable difference (in terms of my own individual experience with the resultant product).
Manufacture¶
Spinergy wheel¶ |
X-braces¶ |
3D Printed Components¶ |
I was fortunate to have a tour through Sydney Manufacturing Hub and was able to get the braces 3D printed in Aluminium, Selenium, Magnesium (AlSi10Mg) on a very impressive laser machine.
Previously I had considered these simply consumables and had used contact adhesive to bond between spokes. The rear never lost a brace; but I have lost fronts in the past; so I am considering an epoxy to bond these ones.