Name: Road Carbon RD2 - black
Brand: Principia
SKU: 907217857rd2

Specifications

Frame	Full monocoque carbon
Material	Carbon
Fork	Full monocoque carbon
Frame colour	Black
Decal	Black
Speed (no. of gears)	24
Front derailleur	Shimano Ultegra Di2 R8150
Rear derailleur	Shimano Ultegra Di2 R8150
Cassette	Shimano CS-M8100 12sp 10-51T
Crankset	Shimano FC-R8100 50/34T
Bottom bracket	Shimano SM-BB72 pressfit
Front brake	Shimano Ultegra R8170 hydraulic disc brake, 160 mm. rotor
Rear brake	Shimano Ultegra R8170 hydraulic disc brake, 160 mm. rotor
Stem	Ritchey Comp 4-Axis-44 6D Aluminium, 31,8x110mm
Handlebar	Ritchey Comp Evo Curve, 420 mm.
Handlebar	Ritchey Comp Evo Curve, 420 mm.
Headset	FSA No 42 1 1/8"-1 1/5"
Saddle	Ritchey Comp Streem
Seat post	Ritchey Comp 2-Bolt Aluminium, 31,6x400mm
Pedals	Not included
Wheels	Miche Reflex DX
Wheel size	28in (700)
Tires	Panaracer Race D Evo4 700x28C
Weight	8.5kg
Suitable for	Road
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Principia Road Carbon is a high-performing endurance road bike you must own. Road Carbon is built from stiff carbon, which we have designed to be light, comfortable and highly effective for training or racing. Take your road cycling to the next level and experience pure performance with Road Carbon.

The model is equipped with the all new Shimano Ultegra Di2 groupset with wireless shifting.

Go racing

Groupset

Shimano Ultegra Di2 R8100

Road cycling has never been more fun. The all new Shimano Ultegra Di2 is a top quality groupset, which challenges the boundaries of ultimate performance. The new Ultegra Di2 features wireless shifting, which means fewer cables than ever before. The shifting is light and incredibly fast, which results in high comfort and performance - no matter the length of the ride.

Tires

Panaracer Race D Evo4

Panaracer Race D Evo 4 is an ultra-durable road tire with enhanced puncture resistance. Race D Evo 4's new "All Contact Tread Shape" has been re-engineered to accommodate wider rim widths to continue to deliver superior grip and lower rolling resistance.

Learn more about Race D Evo 4

Below you will find our sizing guide.

You just have to measure your inseam, to learn which size suits you.

Inseam in cm	Size in inches	Size in cm
67-72	17.5-19	45-48
73-77	19-20	48-51
78-81	20-21	51-54
82-86	21-22.5	54-57
87-90	22.5-23.5	57-60
91-94	23.5-24.5	60-63

Frame size	45cm	48cm	51cm	54cm	57cm	60cm
Reach (mm)	380,8	386,1	385,3	384,9	388,1	404,3
Stack (mm)	500,8	500,8	522,1	557,2	578,6	607,3
Trail (mm)	59,3	59,3	59,3	56,4	56,4	56,4
Standover height (mm)	698,8	718,7	744,4	774,8	802,3	830,4
BB height (mm)	270,5	270,5	273	273	275,5	275,5
Top tube length (mm)	515	525	540	550	565	590
Seat tube length (mm)	450	480	510	540	570	600
Chain stay length (mm)	408	408	408	408	410	410
Wheel base (mm)	964,6	969,8	976,9	982,9	995,9	1020,9
BB drop (mm)	72,5	72,5	70	70	67,5	67,5
Head tube length (mm)	95	95	120	155	180	210
Seat tube angle	75	74,5	73,5	73,5	73	73
Head tube angle	72,5	72,5	72,5	73	73	73

Road Carbon RD2 - black