Planet X Pro Carbon Shimano Ultegra R8000
planetx
Race
Planet X Pro Carbon Shimano Ultegra R8000 is a carbon race road bike (2023), by Planetx, from the Planet lineup. It is best suited to riders who want a sporty road feel without a full race fit, with a sporty riding position, while being best matched to paved roads. Metric-wise, it stands out for strong value-for-money versus many similar bikes, good fit flexibility for dialing in rider position, and strong speed potential on smoother terrain. The main limitation versus more focused builds is a firmer ride feel than comfort-first options. Use MatchBikes.com to compare this bike with nearby race options.
6.5
Rating

+2
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Score Summary
Performance
5.9
Value
10.0
Fit
5.9
Performance
Built for speed and efficiency
Speed
7.7
High
Climbing Efficiency
3.3
Hefty but Manageable
Aerodynamics
7.3
Balanced Aero
Fit
Dialed-in Fit & Comfort
Riding Position
6.3
Sporty
Fit Flexibility
8.3
Adjustable
Ride Comfort
2.2
Race-Stiff
Value
Value for Money
10.0
Exceptional Value
Surface Range
Road OnlySpecifications
General
Brand
planetx
Model
Planet X Pro Carbon Shimano Ultegra R8000
Year
2023
Price
$1,871
Category
Road
Sub Category
Race
Groupset
Ultegra
Wheels
700c
Frame
Frame
Planet X Pro Carbon Disc Frameset / Blue / Large - 56cm
Suspension Type
Rigid
Drivetrain
Rear Derailleur
Shimano Ultegra RD-R8000 Rear Mech / Medium Cage
Front Derailleur
Shimano Ultegra FD-R8000 Double Front Mech / Braze On
Cassette
Shimano Ultegra CS-R8000 Cassette / 11-34
Crank
Shimano Ultegra FC-R8000 Chainset / 172.5mm / 50-34
Bottom Bracket
Shimano Ultegra SM-BBR60 Bottom Bracket
Chain
Shimano Ultegra HG-701 11 Speed Chain / 116 Links
Wheels
Rims
Fulcrum Racing 800 Disc 700c Centrelock Wheelset / Front 12mm / Rear 12 x 142mm / Shimano 11 Speed
Tires
Panaracer Catalyst Sport 700c Wire Bead Tyre / 25mm / Black
Brakes
Brake Type
Hydraulic Disc
Brake Description
Hydraulic Disc
Cockpit
Stem
Selcof Zeta 6061 Alloy Stem / 100mm / 31.8mm / 7 Degree
Handlebar
Selcof Zeta V3 Alloy Road Bar / 42cm
Seat
Saddle
San Marco Monza Start Wide Saddle / Black / Carbon Steel
Seatpost
Selcof Zeta 6061 Alloy Seatpost / 27.2mm / 350mm
Geometry
| Measurement | 470mm XSM | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.34 mm | 1.37 mm | 1.45 mm | 1.46 mm | 1.47 mm |
| Bottom Bracket Height | 268 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| Front Center | 576 mm | 580 mm | 582 mm | 595 mm | 606 mm |
| Rake | 54 mm | 55 mm | 46 mm | 37 mm | 32 mm |
| Trail | 51 mm | 48 mm | 55 mm | 64 mm | 66 mm |
| Stack | 513 mm | 529 mm | 556 mm | 573 mm | 594 mm |
| Reach | 384 mm | 386 mm | 383 mm | 392 mm | 403 mm |
| Top Tube Length | 517 mm | 532 mm | 547 mm | 567 mm | 587 mm |
| Seat Tube Angle | 75.5 ° | 74.5 ° | 73.5 ° | 73 ° | 72.75 ° |
| Seat Tube Length | 470 mm | 500 mm | 530 mm | 560 mm | 590 mm |
| Head Tube Angle | 72.2 ° | 72.5 ° | 73 ° | 73 ° | 73.5 ° |
| Head Tube Length | 110 mm | 125 mm | 151 mm | 170 mm | 190 mm |
| Chainstay Length | 407 mm | 407 mm | 410 mm | 412 mm | 412 mm |
| Wheelbase | 982 mm | 988 mm | 982 mm | 989 mm | 996 mm |
| Bottom Bracket Drop | 68 mm | 68 mm | 68 mm | 68 mm | 68 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 |


















































