AUTHOR Ronin 2020 - cromoly frame with triple butted tubes

AUTHOR Ronin 2020Cromoly frame with triple butted tubes  |  Hydraulic brakes SHIMANO GRX

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Technical specification

Size500, 520, 540, 560, 580 mm
Frametriple butted chromoly
Front forkchromoly 700C
Head partsPRESTINE 1-1/8"
Chain WheelSHIMANO GRX 600 46-30 teeth 172.5 / 175 mm cranks
Front derailleurSHIMANO GRX 400
Rear derailleurSHIMANO GRX 400
ShiftersSHIMANO GRX 400 (20)
Free wheelSHIMANO HG500-10 11-34 (10)
ChainKMC X10
HubsQUANDO Road Disc 32 holes
BrakesSHIMANO GRX 400 disc hydraulic (160 mm rotors)
Brakes leversSHIMANO GRX 400
RimsJALCO CR25D 32 holes
Spokesstainless steel hi-ten 1.8 mm black
TiresPANARACER Gravel King SK Kevlar 700 × 38c
HandlebarPROMAX 420 / 440 / 460 mm
TapesAUTHOR suede / gel
Seat postAUTHOR (27.2)
Seat clampAUTHOR (29.8)
SaddleAUTHOR Guru
Weight11,5 kg /54

Geometry and sizes

Size 500 520 540 560 580
Min. figure [cm] 160 168 176 186 193
Max. figure [cm] 170 178 188 195 205
S/T c-t [mm] 500 520 540 560 580
S/T c-c [mm] 460 480 500 520 540
T/T h [mm] 530 545 560 580 595
T/T a [mm] 515 523 542 560 573
H/T [mm] 120 140 160 180 200
C/S [mm] 425 425 425 425 425
W/B [mm] 1015 1021 1032 1042 1046
S/T ang. [°] 74.5 74 73.5 73 72.5
H/T ang. [°] 70.5 71 71 71.5 72
F/L [mm] 408 408 408 408 408
B/B drop [mm] 70 70 69 68 68
B/B width [mm] 45 45 45 45 45
Reach [mm] 374 378 382 390 393
Stack [mm] 563 583 601 623 642
F/R [mm] 68 68 68 68 68
Handlebars [mm] 420 440 440 460 460
Stem [mm] 75 90 90 105 105
Cranks [mm] 172 172 175 175 175
max min
AUTHOR Ronin 2020

The recommended size and stature are just indicative. It is recommended to always consult your choice with the dealer.

  • S/T c-t - seat tube (center-top), length of the seat tube from the middle of BB parts to its peak
  • S/T c-c - seat tube (center-center), length of the seat tube from the middle of BB parts to an axle of the upper tube
  • T/T h - top tube horizontal, horizontal lenght of the upper tube
  • T/T a - top tube actual, real lenght of the upper tube
  • H/T - head tube, head tube lenght
  • C/S - chain stay, chain brace lenght
  • W/B - wheel base, wheelbase (front and rear axle lenght)
  • S/T ang. - seat tube angel, angle between the seat tube axis and an imaginary line connecting the axes of the front and rear wheel
  • H/T ang. - head tube angel, angle between the head tube axis and an imaginary line connecting axes of the front and rear wheels
  • F/L - fork length, fork length from the head parts bottom to the middle of the front wheel
  • B/B drop - bottom bracked drop, lenght between an imaginary line connecting wheels centers and BB parts, measured from BB parts
  • F/R - fork rake, distances between the head tube axis and fork axis measured at center of the front wheel, so-called. off set


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Product options

red50 = UA#42930402   52 = UA#42930403   54 = UA#42930404   56 = UA#42930405   58 = UA#42930406

additional accessories

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