Cervélo S3 Disc Ultegra Di2 2017
Brought to you by Le Spit Cyclery
From first swinging a leg over the S3 Disc it's apparent that this is something special. After recently testing (and being similarly impressed) by the R3 Disc, we had high hopes for the aero-optimised disc bike, and for the most part we were impressed.
The S3 Disc feels at once light, rapid and sharp, and it accelerates with impressive ease. The frame and fork feel rock solid in terms of stiffness and encourage you to dig that bit deeper into your reserves to live up to the bike's promise.
On the flat it's impressively rapid, with every pedal stroke rewarded with an addictive need for speed. A small but important factor is the smooth, silent running of the bike. We had no creaks or tweaks even over some pretty rough tarmac — and a section of gravel thanks to an overenthusiastic bit of Garmin routing. The bike was nothing other than silent.
Yes it’s a little less comfortable than the R-Series bike and we were surprised to see 23mm tyres fitted — even if they do come up broader than that on the wide Enve 3.4 rims. Ideally for rough UK roads we’d like to see 25s fitted and there’s room to spare for bigger rubber on the disc frame.
Weight: 8.1kg (inc. pedals, 2x bottle cages, 58cm frame)
Frame: Cervélo All-Carbon
Fork: Cervélo All-Carbon, tapered S3 fork for Disc
Bottom bracket: FSA PF30
Handlebar: Cervélo, All-Carbon
Shifters: Shimano Di2 ST-R785
Gears: 11-spd Shimano Ultegra Di2 6870
Brakes: Shimano BR-RS805 hydraulic disc Shimano RT81 160 mm rotors
Crankset: FSA SLK 52x36
Cassette: Shimano Ultegra 6800, 11-spd, 11-28t
Chain: KMC X11EL
Saddle: Fizik Antares
Wheels: Enve SES 3.4 for Cervélo
Tyres: Continental Grand Sport Race 700x23c
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