Decision tool

Compare bikes using the facts

Compare up to three bikes: actual components, measurable differences, geometry in your chosen size and current HPM Sport offers.

Add bike 2

Only bikes with a valid HPM offer and linked specifications are included.

2 available spaces

Typing narrows the results. A bike is only added when you select a specific result.

No other comparable bike matches your search.

Available bikes

Specialized · MY 2026

S-Works Tarmac SL8 - Shimano Dura-Ace Di2

346,990 CZK

Check availability

Weight: 6.67 kg
Motor: Not stated
Battery: Not stated
Travel front/rear: Not stated

Choose size and buy

measurable advantage weaker value difference without a verdict

Differences only · on

There are no differences in the published specifications: both bikes have identical values for every compared item.

Specifications	Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2
Frame
Frame	S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Ceramic Speed SLT Headset Bearings, Threaded BB, 12x142mm thru-axle, flat-mount disc
Seat clamp	Tarmac integrated wedge
Suspension
Forks	S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front brake	Shimano Dura-Ace BR-R9270 hydraulic disc
Rear brake	Shimano Dura-Ace BR-R9270 hydraulic disc
Motor
Drivetrain	Shimano Dura-Ace R9270, hydraulic disc
Front derailleur	Shimano Dura-Ace R9250, braze-on
Rear derailleur	Shimano Dura-Ace R9250, 12-speed
Cassette	Shimano Dura-Ace, 12-speed, 11-30t
Chain	Shimano XTR M9100, 12-speed w/ quick link
Crankset	Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter, 52/36t
Bottom bracket	Shimano Dura-Ace, BB-R9100
Wheels and tyres
Front wheel	Roval Rapide CLX III, Tubeless, 21mm internal width carbon rim, 51mm depth, Win Tunnel Engineered, Roval LF18-F hub, 18h, ARRIS MTO-255 Straight Pull Spokes (Carbon Fiber reinforced BioNylon, Ti end fittings)
Rear wheel	Roval Rapide CLX III, Tubeless, 21mm internal width carbon rim, 48.5mm depth, Win Tunnel Engineered, Roval LF19-R hub, 24h, ARRIS MTO-255 Straight Pull Spokes (Carbon Fiber reinforced BioNylon, Ti end fittings)
Front tyre	S-Works Turbo TLR Race Tire, 700x28c
Rear tyre	S-Works Turbo TLR Race Tire, 700x28c
Inner tubes	700x20/28mm, 80mm Presta valve
Cockpit and contact points
Handlebars	Roval Rapide Cockpit, Integrated Bar/Stem
Grips and bar tape	Supacaz Super Sticky Kush
Saddle	S-Works Power with Mirror
Seatpost	S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Accessories
SWAT	Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use
Weight
Weight	6.67 kg
Weight for size	56

Same size, fair comparison

Geometry by size

Geometry differences only

Geometry on the bike Hover over a table row — or tap it — and the dimension is drawn on the bike.

There are no differences for the selected sizes: their geometry is identical.

Dimension	S-Works Tarmac SL8 - Shimano Dura-Ace Di2 54
	172.5mm
Handlebar width mm	400mm
	100mm
Šířka sedla	143mm
	380mm
	544mm
	384mm
	552mm
	381mm
	137mm
	73°
	268mm
	72mm
	58mm
	370mm
	44mm
	579mm
	410mm
	978mm
	541mm
	768mm
	473mm
	74°

The first bike is the reference for the sign of each difference. Green and red are used only where the direction is meaningful: lower weight and higher published electric motor output. Dimensions, travel, capacity, crank length and price are differences without an automatic verdict. “—” means the manufacturer has not published the value. We show weights in kilograms; the manufacturer’s values in pounds are not displayed.

Add bike 2

S-Works Tarmac SL8 - Shimano Dura-Ace Di2

Geometry by size

Bikes, spare parts and equipment