Giant Defy Advanced Pro Ultegra Di2 vs Wilier Granturismo SLR S Ultegra Di2 R8150

Giant

Defy Advanced Pro Ultegra Di2

Wilier

Granturismo SLR S Ultegra Di2 R8150

Top of the rangeEnduranceCarbon700c2027

Top of the rangeEnduranceCarbon700c2026

Close on the specs and the list price: here are their 11 differences, line by line.

Giant Defy Advanced Pro Ultegra Di2, side view

GiantGiant Defy Advanced Pro Ultegra Di2

Wilier Granturismo SLR S Ultegra Di2 R8150, side view

WilierWilier Granturismo SLR S Ultegra Di2 R8150

At a glance

Differences only

Giant Defy Advanced Pro Ultegra Di2 is 400 g lighter than Wilier Granturismo SLR S Ultegra Di2 R8150 (brand figures).
Giant Defy Advanced Pro Ultegra Di2 is the newer model (2027).

Key specs4 differences

Model year 2027 2026

Weight 7.4 kg 7.8 kg +400 g

Frame Carbon

As printed

Advanced-grade Composite, 12x142mm thru-axle, disc

Carbon

As printed

GRANTURISMO SLR - CARBON MONOCOQUE HUS MOD + LIQUID

Wheelset 700c · Giant SLR 0 40 Carbon Disc WheelSystem 700c · MICHE KLEOS 42 CARBON ^{°Value not published by the brand}

Drivetrain 2×12 2×12

Groupset Shimano Ultegra Di2 Shimano Ultegra Di2

As printed

SHIMANO ULTEGRA Di2 R8170

Brake model Shimano Ultegra Di2 hydraulic SHIMANO ULTEGRA Di2 R8170 ^{°Value not published by the brand}

Seatpost– WILIER GRANTURISMO SLR CARBON CUSTOM MADE -15 mm

Prices

Each model's retailers, delivered to your country, and their prices over time.

Giant Defy Advanced Pro Ultegra Di2

Wilier Granturismo SLR S Ultegra Di2 R8150

Character

The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.

Defy Advanced Pro Ultegra Di2 · Road bike rather for smooth ground, very nimble, very high equipment.
Granturismo SLR S Ultegra Di2 R8150 · Road bike average gearing, very high equipment.

Terrain

EasyDemanding

Handling

NimbleStable

Gearing

Speed in the lowest and the highest gear at 90 rpm: lower on the left climbs easier, higher on the right goes faster.

Wilier Granturismo SLR S Ultegra Di2 R815013 km/h - 52 km/h

Easiest gear (climbing)Hardest gear (descending)

Giant Defy Advanced Pro Ultegra Di2Wilier Granturismo SLR S Ultegra Di2 R8150other endurance road bikes

Components and specs

Every spec line by line; the higher range of a component is marked. The technical groups are folded.

Ride type

Ride type Endurance

As printed

Best For: Endurance

Endurance

As printed

Granturismo SLR is the Wilier Triestina high-end endurance bike

Frame and fork1 difference

Fork Carbon

As printed

Advanced SL-grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc

Carbon ^{°Value not published by the brand}

Frame weight– 1,100 g

Max tyre clearance 40 mm 32 mm −8 mm

Axles Thru-axles

As printed

12x142mm thru-axle

–

Bottom bracket– SHIMANO PRESSFIT 86.5X41 ^{°Value not published by the brand}

Drivetrain2 differences

Groupset brand Shimano

As printed

Shimano Ultegra Di2

Shimano

As printed

SHIMANO ULTEGRA Di2 R8170

Shifting Electronic, wired

As printed

Shifters: Shimano Ultegra Di2 ST-R8170

Electronic, wired

As printed

SHIMANO ULTEGRA Di2 ST-R8170

Chainrings 2 ^{°Value not published by the brand} 2 ^{°Value not published by the brand}

Gears at the back 12 12

Chainring teeth Shimano Ultegra 34/50 with Giant Power Pro power meter Shimano Ultegra 50-34T

As printed

SHIMANO ULTEGRA FC-R8100 50-34T

Cassette Shimano Ultegra 11x34 Shimano Ultegra 11-30T

As printed

SHIMANO ULTEGRA CS-R8101-12 11-30T

Rear derailleur Shimano Ultegra Di2 RD-R8150 ^{°Value not published by the brand} SHIMANO ULTEGRA Di2 RD-R8150 ^{°Value not published by the brand}

Shifters Shimano Ultegra Di2 ST-R8170 ^{°Value not published by the brand} SHIMANO ULTEGRA Di2 ST-R8170 ^{°Value not published by the brand}

Power meter fitted yes –

Brakes

Brakes Hydraulic disc

As printed

Shimano Ultegra Di2 hydraulic

Hydraulic disc ^{°Value not published by the brand}

As printed

Shimano Ultegra Disque hydraulique

Front rotor 160 mm –

Rear rotor 160 mm –

Wheels and tyres2 differences

Wheel size 700c / 29"

As printed

CADEX Classics, tubeless, 700x32c (33.5mm), folding

700c / 29" ^{°Value not published by the brand}

Rims Carbon

As printed

Giant SLR 0 40 Carbon Disc WheelSystem

Carbon ^{°Value not published by the brand}

Rim depth 40 mm –

Tubeless ready yes –

Tyres CADEX Classics, tubeless, 700x32c (33.5mm), folding VITTORIA RUBINO PRO IV GRAPHENE 2.0 700x28c ^{°Value not published by the brand}

Tyre width fitted 32 mm 28 mm ^{°Value not published by the brand}−4 mm

Cockpit and seatpost

Handlebar width 424 mm –

Handlebar– Z BAR INTEGRATED CARBON CUSTOM MADE ^{°Value not published by the brand}

Seatpost model– WILIER GRANTURISMO SLR CARBON CUSTOM MADE -15 mm ^{°Value not published by the brand}

Weight

Weighed in size M –

Geometry

Geometry size M

As printed

size M

–

Stack 558 mm –

Reach 384 mm –

Head angle 72.5 ° –

Seat angle 73.5 ° –

Chainstays 420 mm –

Wheelbase 998 mm –

Bottom bracket drop 70 mm –

° Value not published by the brand

Where to buy them

Giant Defy Advanced Pro Ultegra Di2
Its full spec sheet Compare the whole Giant Defy range
Wilier Granturismo SLR S Ultegra Di2 R8150
Its full spec sheet

Compare the whole Giant Defy range

Frequently asked questions

Which is lighter, Giant Defy Advanced Pro Ultegra Di2 or Wilier Granturismo SLR S Ultegra Di2 R8150?

Giant Defy Advanced Pro Ultegra Di2 weighs 7.4 kg, Wilier Granturismo SLR S Ultegra Di2 R8150 7.8 kg, as their brands give them.

What groupset do Giant Defy Advanced Pro Ultegra Di2 and Wilier Granturismo SLR S Ultegra Di2 R8150 come with?

Giant Defy Advanced Pro Ultegra Di2: Shimano Ultegra Di2. Wilier Granturismo SLR S Ultegra Di2 R8150: Shimano Ultegra Di2.

Compare other models

Giant Defy Advanced Pro Ultegra Di2 vs Wilier Granturismo SLR S Ultegra Di2 R8150

At a glance

Prices

Character

Gearing

Components and specs

Where to buy them

Frequently asked questions

Other comparisons