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Specialized Roubaix SL8 Expert - Shimano Ultegra Di2 vs Giant Defy Advanced Pro 0

Both are endurance bikes at a similar price. Here is what actually separates them.

The short answer

These two score within 1 point of each other for a typical all-round rider, so there is no single winner — the right one depends entirely on which of the differences below you care about.

Specialized

Roubaix SL8 Expert - Shimano Ultegra Di2

76% for a typical rider

£5,249 at Brand website
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Giant

Defy Advanced Pro 0

77% for a typical rider

£5,499 at Brand website
✓ Checked *

What actually separates them

Price
The Specialized Roubaix SL8 Expert - Shimano Ultegra Di2 is £250 cheaper — £5,249 against £5,499.
Weight
The Giant Defy Advanced Pro 0 is 0.3kg lighter, which you notice on long climbs more than anywhere else.
Riding position
The Specialized Roubaix SL8 Expert - Shimano Ultegra Di2 sits you more upright (1.56 stack-to-reach against 1.50). The Giant Defy Advanced Pro 0 is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.

Side by side

Spec Roubaix SL8 Expert - Shimano Ultegra Di2 Defy Advanced Pro 0
Price £5,249 £5,499
Weight 8.2 kg 7.9 kg
Frame carbon carbon
Groupset Shimano Ultegra Di2 R8170 2x12 electronic Shimano Ultegra Di2 12-speed
Stack / reach 1.56 1.50
Tyre clearance 40 mm 40 mm
Lowest gear 27 in 27 in
Mudguard mounts Yes Yes
Comfort 73 64
Speed 53 62
Climbing 71 74
Value 0 0

Neither might be the right answer

This page assumes an average rider. Tell us how you actually ride and we will rank these two against everything else at the price.

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