Specialized Bike Size Chart: 49 to 61cm & S-Sizing Guide
Match Specialized 49, 52, 54, 56, 58, 61cm road sizing and S-Sizing MTB labels to your height and inseam.
Traditional cm
49/52/54/56/58/61cm for road bikes like Tarmac, Roubaix, and Allez.
S-Sizing
S/M/L/XL for mountain bikes with Rider-First Engineering per frame size.
Cross-brand
Specialized 54 ≈ Trek 54 ≈ Giant M. Match by height range, not by label.
Model geometry is a reference check; sizing comes from the available size chart rows.
Enter your measurements to see your recommended size, backup size, confidence, and why it fits.
Specialized sizing system
Specialized mixes traditional cm labels with Rider-First S-Sizing.
Specialized uses a mix of traditional cm labels (49, 52, 54, 56, 58, 61) and S-Sizing labels (S, M, L, XL) depending on model and discipline.
For road bikes like Tarmac and Roubaix, Specialized uses traditional cm sizing. For mountain bikes like Stumpjumper, they use S-Sizing.
Specialized cm labels roughly correspond to effective top-tube length, but modern models use sloping geometry — match by height range, not cm label.
S-Sizing uses Rider-First Engineering: each frame size has unique tube dimensions and carbon layup, not just scaled geometry.
Specialized size chart by bike type
Road bikes use traditional cm labels. Mountain bikes use S-Sizing. For gravel models like Diverge, check the model-specific page.
Specialized road size chart
Size
49
Height
5'1"–5'4"
Height cm
155–163
Inseam cm
70–74
Standover cm
–
Fit note
Entry size for shorter riders; check model availability.
Size
52
Height
5'3"–5'7"
Height cm
161–169
Inseam cm
73–77
Standover cm
–
Fit note
Common road size for riders around 5'5".
Size
54
Height
5'6"–5'9"
Height cm
167–175
Inseam cm
76–80
Standover cm
–
Fit note
Most popular size for average-height riders.
Size
56
Height
5'8"–5'11"
Height cm
173–181
Inseam cm
79–84
Standover cm
–
Fit note
For riders around 5'10"; confirm reach is comfortable.
Size
58
Height
5'10"–6'2"
Height cm
179–187
Inseam cm
83–88
Standover cm
–
Fit note
Tall riders; check top-tube length and standover.
Size
61
Height
6'1"–6'5"
Height cm
185–195
Inseam cm
87–93
Standover cm
–
Fit note
For riders over 6'2"; confirm bike ships in this size.
Specialized mountain size chart
Size
XS
Height
4'11"–5'2"
Height cm
150–158
Inseam cm
67–72
Standover cm
–
Fit note
S-Sizing XS; typically 27.5" wheels.
Size
S
Height
5'1"–5'6"
Height cm
156–167
Inseam cm
70–76
Standover cm
–
Fit note
S-Sizing S; may use 27.5" wheels on some models.
Size
M
Height
5'5"–5'9"
Height cm
165–176
Inseam cm
75–81
Standover cm
–
Fit note
S-Sizing M; most common trail bike size.
Size
L
Height
5'9"–6'1"
Height cm
174–185
Inseam cm
80–86
Standover cm
–
Fit note
S-Sizing L; typically 29" wheels.
Size
XL
Height
6'0"–6'4"
Height cm
183–193
Inseam cm
85–91
Standover cm
–
Fit note
S-Sizing XL; 29" wheels.
Size
XXL
Height
6'3"–6'7"
Height cm
191–201
Inseam cm
90–96
Standover cm
–
Fit note
S-Sizing XXL; for very tall riders.
Specialized vs Trek vs Giant at the same height
Height
5'0"–5'3"
Trek
XS / 47
Giant
XS / S
Specialized
49 / S
Height
5'3"–5'6"
Trek
S / 50
Giant
S
Specialized
52 / M
Height
5'6"–5'9"
Trek
M / 54
Giant
M
Specialized
54 / M
Height
5'9"–6'1"
Trek
ML / 56
Giant
M/L
Specialized
56 / L
Height
6'1"–6'3"
Trek
L / 58
Giant
L
Specialized
58 / XL
Height
6'3"–6'6"
Trek
XL / 61
Giant
XL
Specialized
61 / XL
Popular Specialized models
Between Specialized sizes
Traditional cm has clear gaps — use the height chart, then check reach.
Pick the smaller Specialized size
When you want a lower, racier position on Tarmac or Allez Sprint. Smaller size = shorter reach and lower stack.
Pick the larger Specialized size
When you want a more upright endurance position on Roubaix or Diverge. Confirm standover clearance.
S-Sizing picks for you
Specialized's S-Sizing groups body measurements into size bands. Trust the size finder result — Rider-First Engineering means the frame is optimized for that specific size.
Specialized bike FAQ
Short answers for choosing a Specialized frame before purchase.
What size Specialized bike should I get?
Start with Specialized's height range: 49cm fits 5'0"–5'3", 52cm fits 5'3"–5'6", 54cm fits 5'6"–5'9", 56cm fits 5'9"–6'1", 58cm fits 6'1"–6'3", 61cm fits 6'3"–6'6". For S-Sizing models, use the Specialized size finder on the product page.
How does Specialized S-Sizing work?
S-Sizing is Specialized's mountain bike sizing system using S–XL labels instead of cm. Each size is engineered with Rider-First technology — the geometry, carbon layup, and tube dimensions are customized per size rather than simply scaled.
Is Specialized sizing smaller than Trek?
Specialized 52cm roughly corresponds to Trek 52cm, and Specialized 54cm to Trek 54cm. Both brands use similar height ranges for road bikes, but mountain bike sizing differs due to Specialized's S-Sizing system.
What size Specialized Diverge should I get?
Diverge uses Specialized's road cm sizing. Match your height to the chart: 5'6"–5'9" → 54cm, 5'9"–6'1" → 56cm. The Diverge has a slightly more upright position than the Tarmac, so between-sizes decisions lean toward the larger size for gravel riding.
Data sources