Road Sizing Chart

Giant Road Bike Sizing (Men's)

Size	Rider Height (cm)
XS	157 - 169
S	165 - 175
M	171 - 181
M/L	177 - 187
L	183 - 193

Giant Road Bike Sizing (Women's)

Size	Rider Height (cm)
XXS	149 - 157
XS	155 - 165
S	162 - 169

Trek Road Bike Sizing (Emonda / Domane Gen 3/4)

Size	Rider Height (cm)
47	152 - 158
50	158 - 163
52	163 - 172
54	172 - 178
56	178 - 182

Trek Road Bike Sizing (Madone Gen 8)

Size	Rider Height (cm)
XS	145 - 160
S	160 - 168
M	168 - 178
ML	178 - 185
L	183 - 190

The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.

LIGHTEST

X-LAB RT 9 Frameset

Name: X-LAB RT 9 Frameset
Brand: X-Lab Bicycle Malaysia
SKU: B10000585
Availability: InStock

RM9,299.00

Specifications:

Frame : XDS Carbon Frame, Toray T-1100 + M40X, UDH Compatible
Fork : XDS Carbon Fork, Toray T-1100, 100x12mm Thru-axle
Seatpost : XDS Carbon Seatpost, 27.2mm
Weight: 1.14 kg / 2.51 lbs (Size M, w/o headsets)
Size: S (165 – 170cm)

SKU: B10000585 Category: Road Bikes Malaysia

Brand: X-Lab Bicycle Malaysia

550g Frame to Defy Gravity

When the goal is pure elevation, grams matter. The RT9 begins with a frame engineered to approx. 550, built to feel weightless on the steepest pitches while staying composed under real-world power.

Material : Toray T1100 carbon & refined through extensive structural analysis, the weighs an astonishing 550g with maintaining the stiffness and durability required for elite racing.

The result is a machine built for purest expression of climbing performance with instant acceleration, unmatched efficiency and effortless elevation gain.

X-Lab Bicycle Malaysia

X-LAB is the performance road bike brand from XDS, one of China's leading bicycle manufacturers. Since 2025, X-LAB has been the official bike supplier for the UCI WorldTeam XDS Astana, replacing the team's former partner Wilier Triestina — a major milestone for a Chinese-engineered bike brand entering elite professional cycling. Raced by WorldTour pros at races like the Tour de France, Giro d'Italia, La Vuelta, X-LAB combines pro-team-proven frame technology with a more accessible price point than legacy European brands — built for racing, training, and long rides across Malaysia's roads. Why choose X-LAB: