The Alight Disc features an easy on and off frame design, touchpoints to maximize comfort and is available in Alight Disc City models equipped with fenders, a rack and a kickstand making the ride on the bike path or the commute to work more enjoyable.

Key Performance Factors

Versatility

Run errands easily with the Alight’s included fenders, rear rack, and kickstand (select models).

Comfort

Staying comfortable on your rides around town is a non-negotiable, so the Alight has an easy on and off frame, and comes with shock-absorbing grips, a pressure-relieving saddle, and a suspension seatpost.

Control

The Alight’s powerful disc brakes work in dry or wet conditions, and with the increased fork clearance, you can install up to a 40c tire which allows for greater traction.

Specifications

Sizes

XS, S, M, L
Colours

Night Haze
Frame

ALUXX-grade aluminum, disc
Fork

high tensile steel, disc
Shock

N/A
Handlebar

Giant Sport flat, 25.4mm, 20mm riser XS: 600mm, S: 600mm, M: 640mm, L: 640mm
Stem

Giant Sport, 25.4mm XS: 75mm, S: 75mm, M: 90mm, L: 90mm
Seatpost

Giant D-Fuse, alloy XS:300mm, S:300mm, M:300mm, L:350mm
Saddle

Liv ErgoMax
Pedals

platform
Shifters

Shimano Altus, 2×8
Front Derailleur

Shimano Altus
Rear Derailleur

Shimano Altus
Brakes

Tektro [F] HD-T275, [R] HD-R280 hydraulic [F]160mm, [R]160mm
Brake Levers

Tektro hydraulic
Cassette

Shimano CS-HG318, 11×34
Chain

KMC Z8.3
Crankset

Forged alloy, 30/46 with chainguard XS: 165mm, S: 165mm, M: 170mm, L: 170mm
Bottom Bracket

cartridge
Rims

Giant GX Disc wheelset
Hubs

Giant alloy, QR
Spokes

stainless
Tyres

Giant S-X3, 700x38c
Extras

42mm or 40c max tire size, reflective stickers, rack, kickstand and fender frame mounts

Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.

Sizing Guide and Geometry

Sizing to be used as a reference only. Please check with a local authorized dealer to determine the correct size.
Available sizes may vary from country to country.

XS

148 cm 163 cm
S

158 cm 169 cm
M

164 cm 175 cm
L

170 cm 183 cm

		XS	S	M	L
A	Seat Tube Length (MM)	370	420	460	500
B	Seat Tube Angle	73.5°	73.5°	73.0°	73.0°
C	Top Tube Length (MM)	535	550	570	590
D	Head Tube Length (MM)	130	150	160	175
E	Head Tube Angle	70.0°	70.5°	71.0°	71.0°
F	Fork Rake (MM)	50	50	50	50
G	Trail (MM)	78.2	74.8	71.4	71.4
H	Wheelbase (MM)	1044	1055	1065	1085
I	Chain Stay Length (MM)	445	445	445	445
J	Bottom Bracket Drop (MM)	62	62	62	62
K	Stack (MM)	554	575	587	601
L	Reach (MM)	371	380	391	406
M	Stand Over Height (MM)	591	590	591	587
N	Handlebar Width (MM)	600	600	640	640
O	Stem Length (MM)	80	80	90	100
P	Crank Length (MM)	165	165	170	170
Q	Wheel Size	700C	700C	700C	700C