The Archive · No. 25

Origin of Species

Steel road · 2024 to 2026

Origin of Species
Origin of Species
Origin of Species

About

The Origin of Species was Pearson's return to a steel road bike: Reynolds 725 double butted tubing, fully integrated, and built to be ridden a long way rather than raced.

It was sold in two finishes, Sunrise Orange and Deep Navy, with a choice of 105 twelve speed mechanical or 105 Di2, and alloy or carbon wheels. It has now left the Pearson range. Forge 1860 hold the remaining stock and all the spares.

Origins of Species by Pearson, where heritage meets innovation to redefine the steel road bike. This modern classic is crafted from premium Reynolds 725 CroMoly double-butted tubing, delivering a ride that is as smooth and compliant as it is resilient. Drawing on the timeless elegance of steel, the Origins of Species brings forward the latest advances in cycling technology, ensuring you enjoy a thoroughly contemporary performance without sacrificing the soul of traditional craftsmanship.

Fully integrated and beautifully balanced, this is a bike built for mile after mile of comfortable, confident riding. Complimenting your choice of drivetrain, the Origins of Species can be outfitted with either robust alloy wheels for all-season durability or lightweight carbon wheels for those who prize speed and responsiveness above all.

Available in two vibrant finishes, a luminous Sunrise Orange that catches the eye with its warmth and energy, or a deep and dignified Navy Blue that lends a refined air of understated class.

FrameReynolds 725 double butted CroMoly steel
Finishes Sunrise Orange, Deep Navy
Full Specification
Groupsets offered
  • Shimano 105 R7120 12 speed mechanical
  • Shimano 105 R7170 Di2
Wheels offered
  • Alloy
  • Carbon
Geometry
SIZE/CMX-SmallSmallMediumLargeX-Large
A Frame reach360365378388390
B Frame stack540567585605635
C Top tube length516531551571584
D Seat tube length550580600620650
E Head tube length129156174195228
F Seat angle74.073.773.573.273.0
G Head angle71.572.072.572.572.5
H BB drop73.073.071.571.570.0
I Wheelbase97598499810141026
J Chainstay length417417417417417

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Spares and replacement parts for this model are looked after by Forge 1860.

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