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Eddy Merckx Mendrisio Corsa 105 Di2 vs Giant Defy Advanced Pro 1

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

The short answer

For a typical all-round rider the Giant Defy Advanced Pro 1 comes out ahead (78% against 64%). That is not a universal verdict — change the terrain or the priority and the order can flip.

Eddy Merckx

Mendrisio Corsa 105 Di2

64% for a typical rider

£3,999 at Brand website
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Giant

Defy Advanced Pro 1

78% for a typical rider

£4,199 at Brand website
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What actually separates them

Price
The Eddy Merckx Mendrisio Corsa 105 Di2 is £200 cheaper — £3,999 against £4,199.
Weight
The Giant Defy Advanced Pro 1 is 1.1kg lighter, which you notice on long climbs more than anywhere else.
Riding position
The Giant Defy Advanced Pro 1 sits you more upright (1.50 stack-to-reach against 1.47). The Eddy Merckx Mendrisio Corsa 105 Di2 is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.
Tyre clearance
The Giant Defy Advanced Pro 1 takes 40mm tyres against 30mm — the single most common thing buyers wish they had more of.
Climbing gear
The Giant Defy Advanced Pro 1 has the easier bottom gear (25 gear inches against 27), which matters more than weight on anything genuinely steep.
Mudguards
Only the Giant Defy Advanced Pro 1 takes mudguards, which decides whether it can be your winter bike.

Side by side

Spec Mendrisio Corsa 105 Di2 Defy Advanced Pro 1
Price £3,999 £4,199
Weight 9.2 kg 8.1 kg
Frame steel carbon
Groupset Shimano 105 R7150 Di2 2x12 SRAM Rival AXS E1 2x12
Stack / reach 1.47 1.50
Tyre clearance 30 mm 40 mm
Lowest gear 27 in 25 in
Mudguard mounts No Yes
Comfort 47 64
Speed 55 59
Climbing 57 77
Value 0 11

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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