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Road Logic Frameset

Size

Description

The Road Logic Signature Edition offers a riding experience steeped in more than 50 years of life experiences, framebuilding heritage, innovation, and exploration. It's a legacy that traces back to the 1970s, when Tom Ritchey built his first road frame in his parent's garage in northern California. Since then, Tom has continued to explore, experience, and innovate in ways that define the craft, and the Road Logic Signature Edition is the result of that expanding legacy: his prodigious experience with steel, and mastery of the subtleties and details gleaned from his tenure in the art of creating bicycles.

The beauty of its classic lines unites with modern building techniques and proven materials to deliver a contemporary bicycle that's sufficiently comfortable for long days in the saddle, nimble and stiff enough to win the sprint for that sign, and adequately adaptable to endure roads that might lack proper pavement. Bearing Tom Ritchey's signature on the top tube, it's a subtle reminder that this frame is a direct expression of his lifelong dedication to steel and ride quality.

A true modern classic, the Road Logic Signature Edition uses a heat-treated and triple-butted Ritchey Logic tubeset that was designed by Tom, and it features aggressively short-butted sections optimized for TIG welding that save weight and improve ride quality. Ritchey’s proprietary forged-and-machined integrated head tube uses standard drop-in bearings and saves 80 grams over a standard head tube design.

Wrapped in Ritchey Classic Red paint, the Road Logic Signature Edition also features a Ritchey Carbon Fork and spacing for up to 30c tires to deliver a lifetime of enjoyable pedal turns.

Tech Specs

Frame
Materialheat-treated, triple-butted Ritchey Logic steel tubing - TIG welded
Ultra-light forged and machined straight 1-1/8" headtube
Electrophoretic Deposition (ED Coat) treated for corrosion resistance
Seat tube clamp size28.6mm (2.5Nm max for derailleur clamps and chain guides)
27.2mm seat tube with integrated seat collar (max torque setting: 6Nm)
Bottom bracket68mm - English threaded
Crankset min/max ring size46/30t to 53/39t
Chainline44mm
Bottle cage mounts2
Standard Quick Release front and rear
External cable routing
WCS headset included (upper IS42/28.6 - 16mm stack height | lower IS42/30)
Fork
Ritchey WCS Carbon Road Fork included
1-1/8" straight steerer with integrated 45-degree crown race 
Steerer length300mm
Axle-crown371mm
Rake/Offset46mm (sizes 49/51/53cm) – 43mm (sizes 55/57/59cm)
30mm maximum spacers below stem
Tire Compatibility
Wheel and tire compatibility700 x 30c tire clearance (depending on tire/rim manufacturer)
Frame spacing38mm
Fork spacing40mm
Details
Sizes49 / 51 / 53 / 55 / 57 / 59cm
Frame weight1,750g (size 55)
Fork weight380g (uncut steerer)
ColorRitchey Classic Red

Logic Features

WCS Logic Tubing

WCS Logic Tubing

Ritchey's proprietary and triple-butted steel tubing developed specifically for the TIG welding process to Tom's specifications.

integrated seat collar

Integrated Seat Collar

The fastback seat stay/seat tube junction is both recognizable and functional in securing the seatpost.

Integrated Carbon crown

Integrated Carbon Crown

Sleek integration with Ritchey headsets and the added benefit of reducing stress at the steerer crown interface.

Geometry

  • Design
  • Design
Frame Size
49cm
51cm
53cm
55cm
57cm
59cm
A
Top tube (effective)
518
532
548
563
575
590
B
Top tube (actual)
511
524
537
551
563
577
C
Seat tube (c-t)
465
485
505
525
545
565
D
Seat tube angle
75°
74.5°
74°
73.5°
73.5°
73.5°
E
Head tube length
100
115
140
160
180
200
F
Head tube angle
72°
72.5°
73°
73.5°
73.5°
73.5°
G
BB drop
72
72
72
70
70
70
H
Chainstay
410
410
415
415
415
415
I
Wheelbase
975
981
993
996
1008
1018
J
Standover height
735
753
774
795
815
835
K
Stack
507
523
549
568
587
609
L
Reach
382
387
391
395
401
410
M
Fork rake
46
46
46
43
43
43
N
Axle to crown
371
371
371
371
371
371
Post diameter
27.2
27.2
27.2
27.2
27.2
27.2

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