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AUTHOR Ronin 2025
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Ronin 2025

Colour variants
Cromoly frame and forkComponents SHIMANO GRX 600 / 400, 20 speedDisc hydraulic Brake SHIMANO GRX 400Holders for carrier CARGO ACR-F05-ALULegendary tires PANARACER Gravel King SK Sport 700 × 40CSpecial gravel saddle AUTHOR GuruTapes AUTHOR suede / gel
price 38 990 Kč
other models
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Technical specification

Size500, 520, 540, 560, 580 mm
Frametriple butted cromoly
Front forkcromoly 700C
Head partsPRESTINE 1-1/8"
Chain WheelSHIMANO GRX 600 46-30 teeth 172,5 / 175 mm cranks
BBPartsSHIMANO BB-RS500, BB unit
Front derailleurSHIMANO GRX 400
Rear derailleurSHIMANO GRX 400
ShiftersSHIMANO GRX 400 (20)
Free wheelSHIMANO CS-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 SRD 21 32 holes
Spokesblack stainless steel 1.8 mm
TiresPANARACER Gravel King SK Sport 700 × 38C (40-622)
HandlebarPROMAX 420 / 440 / 460 mm
TapesAUTHOR suede / gel
StemAUTHOR alloy
Seat postAUTHOR alloy (27.2)
Seat clampAUTHOR (29.8)
SaddleAUTHOR Guru
Speed20

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] 515 529 542 560 573
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] 68 68 68 68 68
Reach [mm] 374 378 382 390 393
Stack [mm] 562 583 601 617 642
F/R [mm] 45 45 45 45 45
Handlebars [mm] 0 0 0 0 0
Stem [mm] 0 0 0 0 0
Cranks [mm] 0 0 0 0 0
maxmin
205 cm
silueta
Choose the height of the character by moving the pointer on the scale.
Ronin 2025

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

Product options

red50 = UA#42962402   52 = UA#42962403   54 = UA#42962404   56 = UA#42962405   58 = UA#42962406