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Spinergy's ...

by Alan Milligan — last modified Aug 04, 2019 04:43 PM

Some open source 3D printing and inventory of new (old) bike

Giant Cadex CFR-1 in immaculate condition for its age. The frame is bonded carbon and a dream to ride. Comes with the coolest Spinergy Rev-X wheels. You wont find any in better condition.

This is the 1993 model, an absolute classic as it is the first of the successful CFR range. The CFR-1 is the top of the range complete with Shimano 600 groupset.

Spinergy Rev-X wheels are icons of 1990's cycling until they were banned by the UCI in 2001 as they failed a new safety standard, of which there are conspiracy theories. Apparently the Rev-X's come in four generations, with this pair being the last. I am not entirely sure if these are superstiffs; but they do have an additional finger of carbon layup on the inside of each spoke.

Spinergy also sold stiffeners, known as X-Beam's for these wheels which supposedly improves lateral stiffness. An X-Beam was an additional plastic brace that wedged between each spoke. These came in three different colours for different tensions provided. There is quite some controvesy as to whether these are effective - with a good technical discussion here

It seems these are incredibly difficult to find these days, but can be 3D printed based upon an open source design here. The Linux 3D/modelling application blender can be used to edit/tweak the design.

Frame Cadex CFR1 (GC4B996) 1645g (+ fork 565g)
Stem Modolo [q] race 115/91 degree 350g
Bars 3T Forma SL 44cm 295g
Seat Post Giant Aero Mike Burrows 270g
Saddle Selle Turbo 230g
Wheels Spinergy Rex-X F 1220g; R 1700g (w tyre/cassette)
Derailleur Shimano FD6401; 6400RD 110g/240g
Chain Suntour 104 links 315g
Crankset FC A300 170 53/39 535g
Cassette 12/22
Bottom Bracket BB-UN52 325g
Brakes BR A550 360g (pair)
Shifters Shimano 600 STI 535g
Pedals SPD 385g
Total Weight 9580g
Teny tension chart
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Alan Milligan

Alan Milligan

Alan Milligan

Location: Sydney, Australia
Alan Milligan
Alan is the principal technical architect of Last Bastion Network solutions in Australia. Alan's background is in application development with a number of global titans of retail and investment banking. Alan also has a history of CIO roles for a number of start ups where he delivers business value with open source solutions. Talk to Alan about how you can deliver critical infrastructure while mitigating risk and managing your existing vendor relationships.