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April 22, 2019 3 min read

So, a few months back you may have read about us embarking on a retro rebuild project on a vintage 90's GIOS. It was all inspired by the limited edition release of the Astral Radiant rims in polished silver which reminded us so much of some classic Campy Shamals that we just had to find a suitable canvas to build a bike around them!

This was the starting point as far as inspiration for the bike build:

Remember our aim for this build was not a full 100% retro build, we were going for the retro look as close as possible but with some modern touches like 2 x 11 drivetrain, quality bearings from Chris King and a wider modern rim.

So how did we approach the rest of the build?

The wheels were the starting point for this so lets deal with those first; Astral Radiant 20/24 rims on Chris King Silver R45 hubs, these were handbuilt by our in-house wheelbuild team and finished off with some tan-wall Vittoria Corsa G+ 25c tires.

Next up we added a Chris King GripNut 1" headset in Silver, the perfect combination of old school standards with modern day bearings that will last a lifetime.

For the rest of the build we spec'd the brand new Campagnolo Potenza groupset which is available in a polished silver finish. This is a really great way to be able to build up a retro looking build with all the benefits of a modern groupset such as 2 x 11 compact gearing, dual pivot brakes and more. My only draw back when it comes to the Potenza polished groupset is on the rear derailleur which I think they could have done a better job of replacing the black plastic parts with silver ones.

For the finishing touches we went 100% retro for the cockpit, sourcing a vintage 3T titanium 1" quil stem, and NOS (new old stock) 3T bars with a classic bend. Seatpost is a used titanium one we had gathering dust, not sure on the brand but it fits and looks great on this build. For the saddle we went new with a white Fabric Scoop Ti, and white Fizik bar tape; again both modern options that totally fit our retro look. The build was finished off with stainless-steel King Cage bottle cages and Phil Wood skewers.

The finished article. Sit back and enjoy the rest of the photoset of the finished build, we hope you like the result as much as we do! 


Interested in buying this bike? Or looking for help with your own retrorebuild.. give us a shout!

Full Specification:

Part Brand
Frame & Fork GIOS Compact Pro (used)
Wheels Astral Radiant Polished rims on Chris King silver R45 hubs
Tires Vittoria Corsa G+ Tire - 700 x 25, Clincher, Folding, Black/Tan, 320tpi
Skewers Phil Wood
Headset Chris King Gripnut
BB Campagnolo Record Ultra-Torque Bottom Bracket Cups, Italian
Crank Campagnolo Potenza Crank, 175mm, 50/34, Silver
Bar 3T handlebar Ergo Power Due 43cm TDF Bend (NOS)
Stem 3T Titanium stem Pro 1 Inch Quill 130mm Length 3T Vintage 73° (used)
Seatpost Titanium (used - brand unknown)
Shifters Campagnolo Potenza
Brakes Campagnolo Potenza
Rear Mech Campagnolo Potenza
Front Mech Campagnolo Potenza (braze on)
Cages King Cage Stainless Steel
Saddle Fabric Scoop Ti
Chain KMC X11-93
Cassette Campagnolo Chorus Cassette - 11 Speed, 11-27t, Silver



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