Giant TCR Advanced Pro 0 Di2 (2025)

The TCR Advanced Pro range sits a step below the top-end TCR Advanced SL series.

And the TCR Advanced Pro 0 Di2 is the best build kit of the mid-range TCRs.

Mid-range is such a low-level word though and doesn't do the bike justice.

We're forced to use it because the Advanced Pro sits above the TCR Advanced and below the TCR Advanced SL.

The fact is all new riders will not outride the TCR Advanced Pro Di2. Even experienced serious enthusiasts will be hard pressed to do so.

In this preview, we'll explain who the TCR Advanced Pro 0 is best suited for and cover major features of the build.

What is the TCR Advanced Pro 0?

Simply, it's a race bike.

It's been tuned for sharp and agile handling. This is paired with acceleration that's on the responsive end of the spectrum.

There's nothing slow or dull about the TCR Pro 0.

Riders also need to take into consideration ergonomics.

The TCR has a lower front end and longer reach. Overall you're positioned aerodynamically.

Who is the TCR Advanced Pro 0 for?

The 0 is designed for riders who:

• Have been road riding for at least a year.
• Are upgrading from an older road bike that has similar racier handling.
• Have good foundational fitness and flexibility.
• Are willing to spend more on a performance package that doesn't need any expensive future upgrades (such as wheels).
• Happy with second-tier components that have 90% of the performance of top tier hardware and without the premium pricing.

The TCR Advanced Pro 0 Di2 build.

At the heart of the 0 build is Shimano's Ultegra Di2 build. Di2 indicates the build uses electronic gears.

Ultegra uses the same motors (and therefore shift speed) as the top-tier Dura-Ace. The Ultegra cassette and chain use HyperGlide+ technology - same as Dura-Ace.

HG+ delivers much smoother gear changes under load.

The design transitioned across from Shimano's mountain biking components; situations where shifting under power sometimes can't be avoided.

Ultegra hydraulic brakes help riders slow down. The new callipers have extra pad clearance to eliminate rubbing against the disc rotors.

Ultegra rotors have extended fins to expand the surface area to release heat faster; minimising overheating and therefore loss of brake power.

Further the rotors use a hybrid construction (called IceTech). A steel inner layer is sandwiched in between 2 alloy layers. The steel core helps the rotor stay straight and the alloy dissipates heat.

The difference in temperature between a stainless steel rotor and an IceTech is 100-degrees Celsius.

Fast Wheels

Next, we have to cover the Giant SLR 0 40 wheels.

Rim height is 40mm. They're perfect for climbing and all-day rides. Typically a 40mm deep rim isn't as laterally stiff as deeper rims.

But that doesn't apply here.

Because the SLR 0's have bladed spokes made from carbon fibre. The SLR 0's have a sublime response to rider input.

The internal rim width is 22.4mm and designed for tyres between 25c-32c. The extra internal width allows more air volume and a much smoother road feel.

Weight is 1,339 grams.

Both wheels roll on super low-friction hubs. And a fast 40T rear hub driver delivers power every 9-degrees. Both will help riders set new personal records.

Train with Power

Giant uses their Power Pro power metre on this build as well. Power is a must have training tool if you want to understand how to perform better on the bike.

Riders using Power Pro will experience:

Right and left power mapping. It'll help you even out your power distribution on each side.
Power phase charting.

Understand where in the pedal stroke you're applying power. Plus will help you pedal more efficiently by telling you where to apply power.

Power Pro will also help you calculate your FTP (Functional Threshold Power). Think of this as your starting point. When this improves, you know your baseline fitness is improving.