What is BCD of SRAM Rival crankset? It would be possible use chainrings 53/39T? What 53/39T chainrings are compatible to SRAM Rival crankset? Do you have the model of hub/freewheel used with OG-1070? I have a pair of Matrix carbon 38 mm wheels and I intend to use with the bike. What do I have to do for use Rival drivetrain with that wheelset? Thank you very much!

Tech Specs:

Frame:

Carbon monocoque 

Fork:

Look F20 Carbon 

Fork Blade Type:

Straight 

Steer Tube Type:

Carbon 

Headset:

FSA internal threadless 

Bottom Bracket:

SRAM GXP 

Crankset:

SRAM Rival OCT 

Teeth:

50 / 34T 

Crank Arm Length:

[55] 175mm 

Chain:

SRAM PC 1050 

Cassette:

SRAM OG 1070 

Sprocket Range:

12-25T 

Shifters:

SRAM Rival Double Tap 

Front Derailleur:

SRAM Rival 

Rear Derailleur:

SRAM Rival 

Cage Length:

Short 

Brake Levers:

SRAM Rival 

Brakes:

SRAM Rival 

Wheelset:

Fulcrum Racing7 

Tires:

Hutchinson Equinox Kevlar Pro Tack 

Tire Size:

700 x 23c 

Stem:

FSA OS 150 

Clamp Diameter:

31.8mm 

Stem Length:

[55] 120mm 

Stem Angle:

6deg 

Handlebar:

FSA Carbon Pro Compact 

Handlebar Width:

[55] 420mm 

Handlebar Drop:

[55] 125mm 

Bar Tape:

Look carbon 

Seatpost:

FSA Carbon Pro 

Seatpost Diameter:

27.2mm 

Saddle:

San Marco Ponzo 

Seat Collar:

Non-QR 

Weight:

[55] 18lb 12oz (8505g) 

Recommended Use:

Century rides, training, racing 

Manufacturer Warranty:

5 Years