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Specialized Tarmac SL8 Pro - Shimano Ultegra Di2 vs Trek Madone SLR 7 Gen 8

Both are race 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

Tarmac SL8 Pro - Shimano Ultegra Di2

72% for a typical rider

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Trek

Madone SLR 7 Gen 8

71% for a typical rider

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What actually separates them

Price
The Specialized Tarmac SL8 Pro - Shimano Ultegra Di2 is £1 cheaper — £7,249 against £7,250.
Weight
The Specialized Tarmac SL8 Pro - Shimano Ultegra Di2 is 0.3kg lighter, which you notice on long climbs more than anywhere else.

Side by side

Spec Tarmac SL8 Pro - Shimano Ultegra Di2 Madone SLR 7 Gen 8
Price £7,249 £7,250
Weight 7.3 kg 7.5 kg
Frame carbon carbon
Groupset Shimano Ultegra Di2 R8170 2x12 electronic Shimano Ultegra Di2 R8170 2x12 electronic
Stack / reach 1.43 1.44
Tyre clearance 32 mm 32 mm
Lowest gear 32 in 32 in
Mudguard mounts No No
Comfort 37 40
Speed 84 79
Climbing 71 67
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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