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Specialized Roubaix SL8 Sport 105 vs Cervélo Caledonia 105

Both are close enough that people cross-shop them at a similar price. Here is what actually separates them.

The short answer

For a typical all-round rider the Specialized Roubaix SL8 Sport 105 comes out ahead (74% against 71%). That is not a universal verdict — change the terrain or the priority and the order can flip.

Specialized

Roubaix SL8 Sport 105

74% for a typical rider

£2,800 at Sigma Sports

£100 under RRP. 30-day returns
Unverified

Cervélo

Caledonia 105

71% for a typical rider

£3,299 at Sigma Sports

30-day returns
Unverified

What actually separates them

Price
The Specialized Roubaix SL8 Sport 105 is £399 cheaper — £2,900 against £3,299.
Weight
The Cervélo Caledonia 105 is 0.4kg lighter, which you notice on long climbs more than anywhere else.
Riding position
The Specialized Roubaix SL8 Sport 105 sits you more upright (1.56 stack-to-reach against 1.48). The Cervélo Caledonia 105 is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.
Tyre clearance
The Specialized Roubaix SL8 Sport 105 takes 40mm tyres against 34mm — the single most common thing buyers wish they had more of.
Mudguards
Only the Cervélo Caledonia 105 takes mudguards, which decides whether it can be your winter bike.

Side by side

Spec Roubaix SL8 Sport 105 Caledonia 105
Price £2,900 £3,299
Weight 8.9 kg 8.5 kg
Frame carbon carbon
Groupset Shimano 105 R7100 mechanical Shimano 105 R7100 mechanical
Stack / reach 1.56 1.48
Tyre clearance 40 mm 34 mm
Lowest gear 26 in 27 in
Mudguard mounts No Yes
Comfort 74 53
Speed 43 60
Climbing 65 66
Value 18 12

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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