Dolan Pre Cursa Specification:

• Frame - Dolan Aluminium 7005 Double Butted Frame, With Alloy Inserts
• Fork Alpina Carbon/Alloy Steerer
• Head Set - Alpina Integral
• Chainset - Sugino RD2
• Bottom Bracket - Sugino RD2
• Chain - Miche 1/8th
• Bars - 3T Ergosum  
• Stem - 3T ARX PRO  
• Saddle - San Marco Ponza
• Seat Post - Alpina Alloy
• Wheels - Navigator Pista (Clincher) 15 + 16 Sprocket Included
• Tyres - Vittoria Zaffiro Slick 23mm

STEP1:
To determine your proper frame size, you will first need to get an accurate inseam measurement . Stand with your back against a wall, your bare feet 6" apart on a hard floor, looking straight ahead. Place a book or carpenteras square between your legs with one edge against the wall, and pull it up firmly into your crotch, simulating the pressure of your saddle while riding. Have a helper measure from the top edge of the book to the floor, in centimeters. (You can convert inches to centimeters by multiplying inches by 2.54.) Repeat two or three times, for consistency, and average the results to get your inseam length.

STEP 2:
Take your average Inseam measurement and Multiply it by 0.67 this will give you your frame size measurement (eg. an inseam measurement of 85cm would give you a value of 56.95. round this down to the closest frame size available (Measurement A on the geometry Chart), in this case the frame size would be a 57. Formula: inseam (cm) x 0.67

Size Chart Size A B C C1 RC E F H L M Q1 Q2 45cm 512 510 - 450 400 969 30 52 95 575 75 71 50cm 526 - - 500 400 962 30 52 105 568 75 72 52cm 535 - - 520 400 971 30 52 120 577 75 73 54cm 547 - - 540 400 976 30 52 140 582 75 74 56cm 565 - - 560 400 977 30 52 160 583 74 75 58cm 570 - - 580 400 981 30 52 180 587 74 75 A Top Tube Length Horizontal F Fork Rake B Top Tube Length Compact H BB Drop C Seat Tube Length (CBB to CTT) L Head Tube Length C1 Seat Tube Length (CBB to TST) M Centre BB to Front Skewer RC Chain Stay Length Q1 Seat Tube Angle E Wheel Base (C to C) Q2 Head Tube Angle