Bicycle Archive · Specification report

2025 Norco Sight A3 150 MX

Velopedia Archive ID 900001347

Overview

Model year	2025
Brand	Norco
Model	Sight A3 150 MX
Bicycle type	Mountain
Archive ID	900001347
Original MSRP	$3,499.00
Colors	Nanaimo Bar Brown
Sizes	1; 2; 3; 4; 5
Weight	17.8 kg (39.4 lbs)

Frameset

Frame construction	Aluminum Frame, High Pivot Horst Suspension, 150mm Travel, UDH, Hangerless Interface Compatible, Ride Aligned™
Frame material	Aluminum
Fork	Rockshox Lyric Base Rush RC, 160mm Travel, 44mm Offset
Rear shock	Rockshox Deluxe Select+ Air, 205x60mm TR

Drivetrain

Shifters	Shimano Deore SL-M6100, 12sp
Rear derailleur	Shimano Deore RD-M6100, 12sp
Crankset	Shimano Deore FC-MT6120-1, 32T, CL55, 165mm (S1,S2) -170mm (S3,S4,S5)
Bottom bracket	Shimano Sealed Bearing, BSA 73mm
Cassette	Shimano Deore CS-M6100-12, 12 Speed, 10-51T
Chain	Shimano Deore CN-M6100, 12sp

Brakes

Brakes	(F) Shimano Deore MT520 4-Piston, Metallic Pads / (R) Shimano Deore MT520 4-Piston, Metallic Pads; Rotors: (F) Shimano RT-64, 203mm rotor, C-Lock / (R) Shimano RT-64, 180mm rotor, C-Lock; Levers: Shimano Deore MT520 4-Piston

Cockpit & contact points

Headset	FSA No. 57 ZS, Sealed Bearing, Tapered 1-1/8" - 1.5", ( ZS44/28.6 \| ZS56/40 )
Handlebar	Norco 6061 bar, 800mm width, 25mm rise
Stem	E13 , 40mm length, 35mm clamp
Saddle	WTB Volt 250 Sport
Seatpost	TranzX YS105, 34.9mm, 150 (S1) -170mm (S2) -200mm (S3,S4) -230mm (S5)

Wheels & tires

Hubs	(F) Shimano SLX,15x110mm,32H,C-lock / (R) Shimano FH-MT510,12x148mm Boost, Micro Spline, 32H, C-lock
Rims	Stan's Flow D, 32H, F- 29", R-27,5", 29mm ID
Front tire	Maxxis Assegai, 3C MaxxGrip EXO+, 29x2.5", Folding
Rear tire	Maxxis Minion DHR II, 3C Maxx Terra EXO+, 27.5x2.4", Folding
Wheel size	29"/27.5"; 29"

Geometry · 1 · 29"/27.5"

Seat tube	350 mm
Effective top tube	565 mm
Head tube	105 mm
Head-tube angle	64°
Seat-tube angle	77°
Chainstay / rear center	420 mm
Wheelbase	1181 mm
Bottom-bracket drop	25/4
Bottom-bracket height	353 mm
Reach	422.5 mm
Stack	618 mm
Standover height	666 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"/27.5"

Geometry · 2 · 29"/27.5"

Seat tube	370 mm
Effective top tube	589 mm
Head tube	115 mm
Head-tube angle	64°
Seat-tube angle	77.25°
Chainstay / rear center	424 mm
Wheelbase	1214 mm
Bottom-bracket drop	25/4
Bottom-bracket height	353 mm
Reach	447.5 mm
Stack	627 mm
Standover height	680 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"/27.5"

Geometry · 3 · 29"/27.5"

Seat tube	385 mm
Effective top tube	613 mm
Head tube	125 mm
Head-tube angle	64°
Seat-tube angle	77.5°
Chainstay / rear center	428 mm
Wheelbase	1247 mm
Bottom-bracket drop	25/4
Bottom-bracket height	353 mm
Reach	472.5 mm
Stack	636 mm
Standover height	689 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"/27.5"

Geometry · 4 · 29"/27.5"

Seat tube	430 mm
Effective top tube	637 mm
Head tube	135 mm
Head-tube angle	64°
Seat-tube angle	77.75°
Chainstay / rear center	432 mm
Wheelbase	1281 mm
Bottom-bracket drop	25/4
Bottom-bracket height	353 mm
Reach	497.5 mm
Stack	645 mm
Standover height	710 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"/27.5"

Geometry · 5 · 29"/27.5"

Seat tube	445 mm
Effective top tube	661 mm
Head tube	145 mm
Head-tube angle	64°
Seat-tube angle	78°
Chainstay / rear center	436 mm
Wheelbase	1314 mm
Bottom-bracket drop	25/4
Bottom-bracket height	353 mm
Reach	522.5 mm
Stack	654 mm
Standover height	720 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"/27.5"

Geometry · 1 · 29"

Seat tube	350 mm
Effective top tube	565 mm
Head tube	105 mm
Head-tube angle	64°
Seat-tube angle	77°
Chainstay / rear center	426 mm
Wheelbase	1186 mm
Bottom-bracket drop	25/25
Bottom-bracket height	353 mm
Reach	422.5 mm
Stack	618 mm
Standover height	666 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"

Geometry · 2 · 29"

Seat tube	370 mm
Effective top tube	589 mm
Head tube	115 mm
Head-tube angle	64°
Seat-tube angle	77.25°
Chainstay / rear center	430 mm
Wheelbase	1219 mm
Bottom-bracket drop	25/25
Bottom-bracket height	353 mm
Reach	447.5 mm
Stack	627 mm
Standover height	680 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"

Geometry · 3 · 29"

Seat tube	385 mm
Effective top tube	613 mm
Head tube	125 mm
Head-tube angle	64°
Seat-tube angle	77.5°
Chainstay / rear center	434 mm
Wheelbase	1253 mm
Bottom-bracket drop	25/25
Bottom-bracket height	353 mm
Reach	472.5 mm
Stack	636 mm
Standover height	689 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"

Geometry · 4 · 29"

Seat tube	430 mm
Effective top tube	637 mm
Head tube	135 mm
Head-tube angle	64°
Seat-tube angle	77.75°
Chainstay / rear center	438 mm
Wheelbase	1286 mm
Bottom-bracket drop	25/25
Bottom-bracket height	353 mm
Reach	497.5 mm
Stack	645 mm
Standover height	710 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"

Geometry · 5 · 29"

Seat tube	445 mm
Effective top tube	661 mm
Head tube	145 mm
Head-tube angle	64°
Seat-tube angle	78°
Chainstay / rear center	442 mm
Wheelbase	1319 mm
Bottom-bracket drop	25/25
Bottom-bracket height	353 mm
Reach	522.5 mm
Stack	654 mm
Standover height	720 mm
Fork offset / rake	44 mm
Trail	135 mm
Crank length	170 mm
Stem length	40 mm
Wheel size	29"

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 23, 2026.