I currently ride a 58 Cervelo S2, the old version of the frame. I was wondering what size ML or L should I get in the Giant Propel?
no stack and reach from giant makes the decision unnecessarily harder than it needs to be. I’d try emailing them for stack and reach but based off the info on their site, the L looks like a closer match assuming you like your fit on the Cervelo.
I found this off a german bike website.
Propel Advanced SL S M ML L XL
Seat Tube Length (mm) 710 740 770 790 820
Top Tube Length (mm) 535 555 570 585 605
Head Tube Length (mm) 135 150 170 185 200
Seat angle (°) 73.5 73.0 72.5 72.5 72.0
Steering angle (°) 72.0 73.0 73.0 73.0 73.0
Chainstay Length (mm) 405 405 405 405 405
Front Center Distance (mm) 579 585 595 610 624
Wheelbase (mm) 974 980 986 1,001 1,021
Supernatant Height (mm) 768 790 813 836 849
Fork pre-bend (mm) 45 45 45 45 45
Caster (mm) 62 56 56 56 56
Bottom Bracket Height (mm) 271 271 276 276 276
Bottom bracket drop (mm) 70 70 70 65 65
Stack (mm) 534 552 566 580 594
Reach (mm) 377 386 391 402 412
Stem length (mm) from 90 100 110 110 120
Handlebar Width (mm) 400 420 420 440 440
Crank arm length (mm) 170.0 172.5 172.5 175.0 175.0
Nice find. The large is within 1-2mm of your cervelo’s stack and reach. That makes it an easy choice!