Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Wheels 700c -
Groupset 105 -
Suspension Rigid -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Full monocoque carbon
Suspension Fork
Full monocoque carbon
Drivetrain
Crank
Shimano 105 FC-R7100 50/34T
Bottom Bracket
Shimano BB72-41B pressfit
Pedals
Not included
Wheels
Rims
Miche Reflex DX
Tires
Panaracer Race D Evo4 700x28C
Brakes
Brakes
Front: Shimano 105 R7100 hydraulic disc brake, 160 mm. rotor, Rear: Shimano 105 R7100 hydraulic disc brake, 160 mm. rotor
Cockpit
Stem
Ritchey Comp 4-Axis-44 6D Aluminium, 31,8x100mm
Handlebar
Ritchey Comp Evo Curve, 420 mm.
Headset
FSA No 42 1 1/8"
Seat
Saddle
Ritchey Comp Streem
Seatpost
Ritchey Comp 2-Bolt Aluminium, 31,6x400mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 48cm | 51cm | 54cm | 57cm | 60cm |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.3 mm | 1.36 mm | 1.45 mm | 1.5 mm | 1.51 mm |
| Bottom Bracket Height | 270.5 mm | 273 mm | 273 mm | 275.5 mm | 275.5 mm |
| Front Center | 573 mm | 579 mm | 585 mm | 595 mm | 620 mm |
| Rake | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm |
| Trail | 59.3 mm | 59.3 mm | 56.4 mm | 56.4 mm | 56.4 mm |
| Stack | 495.8 mm | 517.1 mm | 552.2 mm | 573.6 mm | 602.3 mm |
| Reach | 381.1 mm | 380.3 mm | 379.9 mm | 383.1 mm | 399.3 mm |
| Top Tube Length | 520 mm | 535 mm | 545 mm | 560 mm | 585 mm |
| Seat Tube Angle | 74.5 ° | 73.5 ° | 73.5 ° | 73 ° | 73 ° |
| Seat Tube Length | 480 mm | 510 mm | 540 mm | 570 mm | 600 mm |
| Head Tube Angle | 72.5 ° | 72.5 ° | 73 ° | 73 ° | 73 ° |
| Head Tube Length | 95 mm | 120 mm | 155 mm | 180 mm | 210 mm |
| Chainstay Length | 403 mm | 403 mm | 403 mm | 405 mm | 405 mm |
| Wheelbase | 964 mm | 971 mm | 977 mm | 990 mm | 1015 mm |
| Bottom Bracket Drop | 72 mm | 70 mm | 70 mm | 67 mm | 67 mm |
| Standover Height | 713 mm | 739 mm | 769 mm | 797 mm | 825 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 |
Model Overview
RD3 is a Principia Rd3 model. Principia launched 1 bike of this model so far.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Average price for Race bikes
If you want an acceptable Race bike you should know that the average price is 3350$. However, this doesn’t mean that if you spend less money on a Race bike, you couldn’t get a decent one. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
This bike was released in 2023 and its price was 3397$. Comparing the average cost of a Race bike to this one, you will see that RD3 price is 1.4% more expensive.
Overview of components
Fork material
RD3 has a carbon fork, so, it is super light and stiff. In conclusion, a carbon fork gives you great control when steering, and is also more forgiving.
Wheels
When leaving the production line, the RD3 model has 700c aluminum wheels. These wheels are the most used kind for road bikes in general. However, while they give you great speed and control, these wheels are not so bump-friendly.
Brakes
For your safety, it is important to have quality breaks on your bike. Principia RD3 has Hydraulic Disc brakes installed. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.