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Spotted: Giant Propel Disc prototype at the Tour de France

Spotted: Giant Propel Disc prototype at the Tour de France

A brand new aero machine for Sunweb's Michael Matthews

Published: June 30, 2017 at 1:01 pm

The new Giant Propel Disc for Sunweb's Michael Matthews — The new Giant Propel Disc for Sunweb’s Michael Matthews
Ben Delaney / Immediate Media

Giant isn't yet talking about the new bike, but it's pretty clear what it is — Giant isn’t yet talking about the new bike, but it’s pretty clear what it is
Ben Delaney / Immediate Media

See any wires or hydraulic lines? Neither does the wind — See any wires or hydraulic lines? Neither does the wind
Ben Delaney / Immediate Media

Matthews was just setting up his bike Thursday, with a ride on bare bars to dial in the lever position. Note the Di2 junction box in the bar end — Matthews was just setting up his bike Thursday, with a ride on bare bars to dial in the lever position. Note the Di2 junction box in the bar end
Ben Delaney / Immediate Media

It appears the top of the stem comes off for access to routing shift and brake lines — It appears the top of the stem comes off for access to routing shift and brake lines
Ben Delaney / Immediate Media

Although still difficult to route, it is significantly easier running an electronic set-up with an integrated set-up. A mechanical gear cable would take a sharp angle where it routes down the back of the steerer tube. — This massive stem on Matthews’ bike is alloy. It could still be in prototype form
Ben Delaney / Immediate Media

While the frame is branded and looking to be production-level, the stem and handlebar reamin blank — While the frame is branded and looking to be production-level, the stem and handlebar reamin blank
Ben Delaney / Immediate Media

Slam that stem — Slam that stem
Ben Delaney / Immediate Media

The head tube looks wider than that of the current Propel — The head tube looks wider than that of the current Propel
Ben Delaney / Immediate Media

Shimano's Di2 sprint shifter clips onto the handlebars, and can be wired into the shifter or a junction box — Shimano’s Di2 sprint shifter clips onto the handlebars, and can be wired into the shifter or a junction box
Ben Delaney / Immediate Media

Thru-axles with Allen bolts make for a clean look, but perhaps not the fastest wheel change — Thru-axles with Allen bolts make for a clean look, but perhaps not the fastest wheel change
Ben Delaney / Immediate Media

Giant was one of the very first brands to use an integrated seatmast with the TCR — Giant was one of the very first brands to use an integrated seatmast with the TCR
Ben Delaney / Immediate Media

Matthews' bike has Di2, but it looks like the Propel Disc could handle mechanical systems, too — Matthews’ bike has Di2, but it looks like the Propel Disc could handle mechanical systems, too
Ben Delaney / Immediate Media

Removing rim-brake calipers opens up frame design — Removing rim-brake calipers opens up frame design
Ben Delaney / Immediate Media