Giant Defy Advanced 3 vs Specialized Allez Comp - Shimano 105
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 3 comes out ahead (80% against 76%). That is not a universal verdict — change the terrain or the priority and the order can flip.
What actually separates them
- Price
- The Giant Defy Advanced 3 is £100 cheaper — £1,599 against £1,699.
- Weight
- The Specialized Allez Comp - Shimano 105 is 0.5kg lighter, which you notice on long climbs more than anywhere else.
- Riding position
- The Specialized Allez Comp - Shimano 105 sits you more upright (1.56 stack-to-reach against 1.50). The Giant Defy Advanced 3 is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.
- Tyre clearance
- The Giant Defy Advanced 3 takes 40mm tyres against 35mm — the single most common thing buyers wish they had more of.
Side by side
| Spec | Defy Advanced 3 | Allez Comp - Shimano 105 |
|---|---|---|
| Price | £1,599 | £1,699 |
| Weight | 9.6 kg | 9.1 kg |
| Frame | carbon | alloy |
| Groupset | Shimano Tiagra 2x10 mechanical | Shimano 105 R7100 2x12 mechanical |
| Stack / reach | 1.50 | 1.56 |
| Tyre clearance | 40 mm | 35 mm |
| Lowest gear | 27 in | 27 in |
| Mudguard mounts | Yes | Yes |
| Comfort | 64 | 63 |
| Speed | 42 | 44 |
| Climbing | 52 | 59 |
| Value | 69 | 35 |
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.
Find my bikeRelated comparisons
- Canyon Endurace CF 6 vs Specialized Allez Comp - Shimano 105
- Cube Attain SLX vs Giant Defy Advanced 3
- Giant Contend AR 2 vs Giant Defy Advanced 3
- Giant Defy Advanced 3 vs Canyon Endurace CF 6
- Giant Defy Advanced 3 vs Cube Attain GTC SLT
- Giant Defy Advanced 3 vs Specialized Allez Sport - Shimano Tiagra