BMC Roadmachine Four Road Bike Carbon/Grey (2021)

$3,899.99 $3,783.00   ? You automatically get Club Price when buying online. But there are extra benefits if you join Club 99. $3,404.70  
To access Gold Price, sign in or join for $35.
In stock

Delivery options

Request a Price Beat

Up to 12 months interest free


Perfect Ride Guarantee

Perfect Ride Guarantee
If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

Free Bike Build

Free Bike Build
We'll build your bike for free when you click and collect at any 99 Bikes store.

First Free Service

First Free Tune-up
Every bike come with a complimentary free tune-up and safety check.

Please note, due to challenges in the product supply chain, bike specifications are subject to change without notice. Specifications listed below may not match exactly as shown in the photo.


BMC Roadmachine Four

  • 2x11 Speed Shimano 105 Drivetrain
  • Premium Carbon Frame
  • Shimano 105 hydraulic Disc Brakes
  • Premium Carbon chassis and D-Shape seatpost
  • Mavic Open Disc Rims

Team Member Review

Mitch Sutton
"The Roadmachine is Swiss, it's fast and it gives you a ridiculously smooth ride all day long. It's built to be big on compliance and it really does deliver on that front, and for that reason it comes into its own on those longer rides "
Mitch Sutton

The BMC Roadmachine Four is the go-to high performance road bike for the rider looking to go fast and ride all day. The Swiss designed carbon frame is a standout feature which the brilliance of the Roadmachine is built around. The Tuned Compliance Concept (TCC) improves vertical compliance by up to 25% for a silky smooth ride even on below average road surfaces. It uses ACE (Accelerated Composites Evolution) frame construction technology which delivered the ProTour-winning Teammachine SLR to minimise weight and maximise stiffness for agile acceleration and precision handling. It is equipped with a 2x11 speed Shimano 105 groupset for an incredibly swift and efficient ride, giving you a range of gears and control for any climb or descent.

The Mavic Open Disc Rims offer lightweight high-performance, helping you perform at your best for long periods of time. This bike is built to go fast and you’re going to need to control all of that speed, thankfully the Roadmachine is equipped with Shimano 105 Hydraulic Disc Brakes for excellent braking control in all conditions. The Swiss put a lot of effort into their design and concepts and it really shows on the Roadmachine. There may be a lot of technicalities to describe the Roadmachine, but what you really need to know is that it combines comfortable and efficient compliance with performance concepts that ensures this bike is built to fast and go all day long. This truly is one road bike to do it all.

About the BMC Roadmachine Range

The BMC Roadmachine is a versatile endurance machine which is comfortable even on the most gruelling rides. Recent improvements have been made to improve the range of this bike for comfortable climbing, descending and so that you can get in a swift and efficient rhythm on the flat. Already known for a super smooth ride, BMC have improved vertical compliance by a further 25% with its reinvigorated carbon frame, dropped seatstays and D-Shape seatpost. The improved compliance is matched by a stiffer bottom bracket and a 20% increase in frame lateral stiffness which ensures this bike is comfortable even when poor road surfaces mean it shouldn’t be. If you really want to take comfort to the max, BMC have created space for 33mm tyres so that you can smoothly roll on wide tyres for a crisp ride.

Shop The Roadmachine Range

Tuned Compliance

Take the edge off the roughest roads to push harder and ride further. The ultimate balance between comfort and performance for a ride that is both forgiving and fast.

D-Shape Seatpost

A new “D” compliance post is held in place by a clever, integrated clamping system.

Flatmount Adapter

The front disc hardware comes equipped with a 140/160mm proprietary flatmount bracket for maximal integration and seamless design.

More Information
SKU BMC21RoadmachineFourCarbonGrey
Season 2021
Click & Collect Yes
Wheel Size 700c
Frame Material Carbon
Fork Material Carbon
Groupset Brand Shimano
Groupset Shimano 105
Cassette Type 11 Speed
Chainset Type Double
Brake Type Hydraulic Disc Brake
Brakes Shimano 105, SM-RT70 (160/160)
Cassette Shimano 105, 11-32T
Chain Shimano 105
Crankset Shimano 105, 50-34T
Derailleur Front Shimano 105
Derailleur Rear Shimano 105
Fork Roadmachine Premium Carbon with Tuned Complaince Concept Endurance. ICS Tech, TCC Endurance compliance
Frame Roadmachine Premium Carbon with Tuned Complaince Concept Endurance, ICS Tech, PF86 BB
Handlebar BMC RAB 02, ergo top shape, compact bend
Hubs CL-712 (F)/RXC-1425 (R), Thru Axle
Rims Mavic Open Disc
Saddle Fizik Taiga
Seatpost Roadmachine D-Shape Carbon, 15mm offset
Stem BMC RSM01
Shifters Shimano 105
Tyres Vittoria Rubino, 28mm
Speeds 2 x 11
Sizing SKUs XS: BMRC21000268, SM: BMRC21000269, MD: BMRC21000270, LG: BMRC21000271, XL: BMRC21000272, XXL: BMRC21000273

BMC Roadmachine Sizing Chart

Rider's Height (cm)
XS (47cm)
SM (51cm)
MD (54cm)
LG (56cm)
XL (58cm)
XXL (61cm)

Road Bike Geometry Diagram


ST Seat Tube

TT Top Tube

CS Chain Stay Length

HTA Head Tube Angle

STA Seat Tube Angle

BD Bottom bracket Drop

HT Head Tube

FL Fork Length

R Reach

S Stack

WB Wheel Base


Wheel Size 700c 700c 700c 700c 700c 700c
ST Seat Tube (mm) 420.0 457.0 500.0 522.0 539.0 573.0
TT Top Tube (mm) 522.0 532.0 546.0 556.0 568.0 583.0
CS Chain Stay Length (mm) 410.0 410.0 410.0 410.0 410.0 410.0
HTA Head Tube Angle (°) 71.2 71.2 72.0 72.0 72.0 72.0
STA Seat Tube Angle (°) 74.2 74.2 74.2 74.2 74.2 74.2
HT Head Tube (mm) 112.0 139.0 156.0 181.0 206.0 242.0
R Reach (mm) 374.0 382.0 386.0 390.0 394.0 398.0
S Stack (mm) 516.0 541.0 562.0 586.0 610.0 644.0
WB Wheel Base (mm) 982.0 999.0 997.0 1008.0 1020.0 1035.0