Ribble Ultra-Aero SL R 105 Di2 vs. Specialized Tarmac SL8 Comp Di2

The Ribble Ultra-Aero SL R 105 Di2 is available from £3,149, the Specialized Tarmac SL8 Comp Di2 from £3,589 – a difference of £440. We currently compare 2 offers from online shops and retailers.

Ribble Ultra-Aero SL R 105 Di2

from £3,149 · 1 offers

View deal at Ribble Cycles♡ Save

In favour of the Ribble Ultra-Aero SL R 105 Di2

• cheaper (−£440)

Specialized Tarmac SL8 Comp Di2 – 28″ – Diamond – 2026

from £3,589 · 1 offers

View deal at CYCLESTORE♡ Save

Key differences

• Brand: Ribble Ultra-Aero SL R 105 Di2 – Ribble · Specialized Tarmac SL8 Comp Di2 – Specialized
• Gears: Ribble Ultra-Aero SL R 105 Di2 – 12 · Specialized Tarmac SL8 Comp Di2 – 24

Full spec comparison

	Ribble Ultra-Aero SL R 105 Di2View deal at Ribble Cycles	Specialized Tarmac SL8 Comp Di2 – 28″ – Diamond – 2026View deal at CYCLESTORE
Price from	£3,149	£3,589
Offers	1	1
Brand	Ribble	Specialized
Groupset	Shimano SLX	Shimano SLX
Gears	12	24
Drivetrain	Derailleur	Derailleur
Brakes	Shimano 105	Shimano 105
Frame	Carbon	Carbon
Model year	–	2026
Wheel size	–	28"
	View deal View product on superbike8.co.uk ›	View deal View product on superbike8.co.uk ›

Green = best value in this comparison. Data from manufacturers and retailers, no guarantee. Prices incl. tax, as of 27 October 2026.

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