BMC UnReStricted One Carbon Adventure Road Bike Yellow/Grey (2021)

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

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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.


Teammachine ALR Disc Two

  • URS Premium Carbon with Micro Travel Technology
  • 1x11 SRAM Apex 1 Drivetrain
  • SRAM Apex 1 Hydraulic Disc Brakes
  • DT Swiss C1850 Wheels
  • WTB Raddler Tyres - 40mm

Team Member Review

Madison Pelzer
" The unrestricted is a pretty unique bike which is lively and big on comfort. This bike has versatile characteristics which are setup for a seriously fun ride on loose fire trails or gravel"
Team Leader Lachlan Hughes

The BMC Unrestricted One Gravel Bike is built for thrilling adventures and even gravel racing for the performance focused rider. This bike is built to thrive off-road with its premium carbon frame and modern gravel geometry with a slack head angle with a long front-end for increased stability. The Tuned Compliance Concept design gives this frame the highest levels of compliance and the unique Micro Travel Suspension System gives you 10mm of travel to tame the gravel. While the Integrated Cockpit System (ICS) has gravel specific stem dimensions, and the ICS technology keeps cables and housing in their place. The URS 01 Premium fork has 45mm tyre clearance, with hub-dynamo cable routing and compatibility with a Fox 32 SC AX suspension fork if you ever wanted to really change up your ride.

The Unrestricted runs a 1x11 speed SRAM Apex 1 Drivetrain which is built to excel on the gravel. The 1x setup is ideal for gravel with its simplicity and reliability, yet still offering a wide enough range of gears to tackle any terrain. SRAM also take care of the braking with Apex 1 Hydraulic Disc Brakes for all-weather control on the gravel. This bike rolls on high end DT Swiss C1850 wheels which combines a lightweight design with strength, paired with WTB Raddler Tyres for grip and control on the gravel. The BMC Unrestricted One is unrestricted by name and nature, this is a high-end gravel bike the combines Swiss engineering with practical features to form an excellent gravel grinding machine.


Gravel+ Geometry

Optimised for a modern, aggressive gravel riding style. URS features a slack 70˚ head angle to create a long front-end and wheelbase for incredible stability.

Micro Travel Technology

A lightweight and minimalist suspension system that adds 10mm of travel for perfect power transfer and control on the most challenging terrain.

Versatile Fork

45mm tire clearance, 160mm flat mount (a clean mounting solution for bigger rotors), hub-dynamo cable routing and compatible with Fox 32 SC AX suspension fork.

More Information
SKU BMC21UnReStrictedOneCarbonYellowGrey
Season 2021
Click & Collect Yes
Wheel Size 700c
Frame Material Carbon
Fork Material Carbon
Groupset Brand SRAM
Groupset SRAM Apex
Cassette Type 11 Speed
Chainset Type Single
Brake Type Hydraulic Disc Brake
Brakes SRAM Apex 1 HRD (180/160)
Cassette SRAM Apex 1, PG-1130, 11-42T
Chain SRAM Apex 1, PC-1110
Crankset SRAM Apex 1, 40T
Derailleur Rear SRAM Apex 1
Frame Carbon
Handlebar Easton EA50 AX
Hubs DT Swiss C1850
Rims DT Swiss C1850
Saddle WTB SL8 SSL Medium
Seatpost URS D-Shape Carbon, 0mm offset
Stem BMC MSM 02
Shifters SRAM Apex 1 HRD
Tyres WTB Raddler, 40mm
Speeds 1 x 11
Sizing SKUs MD: BMRC21000299, LG: BMRC21000300, XL: BMRC21000301

BMC Roadmachine Sizing Chart

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

This is an accurate estimate, and every new bike comes with a free professional bike fit when you click & collect in store, plus all bikes have a 30 day Perfect Ride Guarantee.

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
Frame Size MD LG XL
ST Seat Tube (mm) 459.0 492.0 527.0
TT Top Tube (mm) 578.0 591.0 612.0
CS Chain Stay Length (mm) 425.0 425.0 425.0
HTA Head Tube Angle (°) 70.0 70.0 70.0
STA Seat Tube Angle (°) 74.0 74.0 74.0
HT Head Tube (mm) 146.0 172.0 207.0
R Reach (mm) 415.0 419.0 429.0
S Stack (mm) 569.0 603.0 641.0
WB Wheel Base (mm) 1064.0 1081.0 1105.0