AUTHOR A-Matrix 24 SL 2023 - light 24" kids bike

The lightweight 24-inch Author A-matrix 24 SL bike is the lightest of the Matrix family in a given size. The bike is not only comfortable, but also offers sufficient support when handling the first rides on field roads or more demanding terrain. Alloy frame, RST suspension fork, easy-to-operate Shimano Revoshift shift. Two color combinations offer a choice for both boys and girls.

other models

Technical specification

Size	12.5"
Frame	alloy 6061 24" (ASL)
Front fork	RST Capa T 24 (50 mm)
Head parts	PRESTINE 1-1/8"
Chain Wheel	PROWHEEL, 32 teeth, 152 mm cranks
BBParts	VP COMP, cartridge
Rear derailleur	SHIMANO TX800
Shifters	SHIMANO Revoshift (8)
Free wheel	SHIMANO HG31-8, 11-34 (8)
Chain	KMC Z8.3
Hubs	QUANDO, 32 holes
Brakes	TEKTRO V
Brakes levers	TEKTRO alloy

Rims	alloy, 32 holes
Spokes	steel
Tires	AUTHOR Speed Master 24" × 1.75"
Pedals	resin
Handlebar	steel, 20 mm, 580 mm
Grips	AUTHOR kratton rubber
Stem	alloy
Seat post	alloy (27.2)
Seat clamp	AUTHOR (31.8)
Saddle	AUTHOR
Speed	8
Weight	11,4 kg / 12.5"

Geometry and sizes

Size	12,5"
Min. figure ~~[cm]~~	125
Max. figure ~~[cm]~~	140
S/T c-t ~~[mm]~~	318
S/T c-c ~~[mm]~~	0
T/T h ~~[mm]~~	492
T/T a ~~[mm]~~	480
H/T ~~[mm]~~	100
C/S ~~[mm]~~	395
W/B ~~[mm]~~	956
S/T ang. ~~[°]~~	73.5
H/T ang. ~~[°]~~	70
F/L ~~[mm]~~	410
B/B drop ~~[mm]~~	20
B/B width ~~[mm]~~	68
Reach ~~[mm]~~	0
Stack ~~[mm]~~	0
F/R ~~[mm]~~	42
Handlebars ~~[mm]~~	0
Stem ~~[mm]~~	0
Cranks ~~[mm]~~	0

max min

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