Brand chart
Diamondback Bike Size Chart
Diamondback offers bicycles across Mountain, Road, Gravel, Hybrid, Kids. Browse the official size charts below to find your recommended frame size based on height and inseam.
Official website →Data reviewed: 2026-05-17
Mountain bike size chart
Compare Diamondback MTB sizing against trail and hardtail fit ranges.
Road bike size chart
Compare Diamondback road sizing against common frame-size ranges.
Gravel bike size chart
Compare Diamondback gravel sizing against general gravel fit ranges.
Hybrid bike size chart
Compare Diamondback hybrid sizing against commuter and fitness bike ranges.
Kids bike size chart
Check Diamondback youth sizing against wheel-size and height ranges.
Bike size calculator
Use height and inseam to narrow the chart to one or two likely sizes.
All brand size charts
Compare this brand with other indexed bike brand size charts.
Mountain bike size chart
Compare Diamondback MTB sizing against trail and hardtail fit ranges.
Road bike size chart
Compare Diamondback road sizing against common frame-size ranges.
Gravel bike size chart
Compare Diamondback gravel sizing against general gravel fit ranges.
Hybrid bike size chart
Compare Diamondback hybrid sizing against commuter and fitness bike ranges.
Kids bike size chart
Check Diamondback youth sizing against wheel-size and height ranges.
Bike size calculator
Use height and inseam to narrow the chart to one or two likely sizes.
All brand size charts
Compare this brand with other indexed bike brand size charts.
Sizing notes
Read the chart, then check the bike.
Start with category coverage
Diamondback is listed for Mountain, Road, Gravel, Hybrid, Kids. Choose the bike category first because road, gravel, mountain, and kids sizing use different assumptions.
Check data status
Data sourced from official brand references. Use the result as a shortlist, not a final fit decision.
Confirm the exact model
Model year, geometry, wheel size, and cockpit setup can change the final answer even when the height range looks right.
Diamondback Mountain Bike Size Chart
Size
S
Height
157-170 cm
Inseam: 72-78 cm
Size
M
Height
168-180 cm
Inseam: 77-83 cm
Size
L
Height
178-190 cm
Inseam: 82-88 cm
Size
XL
Height
188-200 cm
Inseam: 87-94 cm
Diamondback Road Bike Size Chart
Size
48
Height
152-160 cm
Inseam: 69-73 cm
Size
50
Height
158-165 cm
Inseam: 72-76 cm
Size
52
Height
163-170 cm
Inseam: 75-79 cm
Size
54
Height
168-176 cm
Inseam: 78-82 cm
Size
56
Height
175-183 cm
Inseam: 81-85 cm
Size
58
Height
181-190 cm
Inseam: 84-89 cm
Size
61
Height
188-198 cm
Inseam: 88-93 cm
Diamondback Gravel Bike Size Chart
Size
XS
Height
152-163 cm
Inseam: 69-75 cm
Size
S
Height
161-170 cm
Inseam: 74-79 cm
Size
M
Height
168-178 cm
Inseam: 78-83 cm
Size
L
Height
176-188 cm
Inseam: 82-88 cm
Size
XL
Height
186-198 cm
Inseam: 87-93 cm
Diamondback Hybrid Bike Size Chart
Size
XS
Height
152-163 cm
Inseam: 69-75 cm
Size
S
Height
161-170 cm
Inseam: 74-79 cm
Size
M
Height
168-178 cm
Inseam: 78-83 cm
Size
L
Height
176-188 cm
Inseam: 82-88 cm
Size
XL
Height
186-198 cm
Inseam: 87-93 cm
Popular Models & Reference Geometry
Century 1
2025 · Road
Stack: 575mm · Reach: 380mm
Century 2
2025 · Road
Stack: 580mm · Reach: 382mm
Century 4 Carbon
2025 · Road
Stack: 590mm · Reach: 385mm
Century 5 Carbon
2025 · Road
Stack: 590mm · Reach: 385mm
Podium Vitesse Carbon
2025 · Road
Stack: 555mm · Reach: 390mm
Haanjo 3
2025 · Gravel
Stack: 575mm · Reach: 378mm
Wildwood Classic Comfort
2025 · Hybrid
Stack: 605mm · Reach: 385mm
Octane Youth
2025 · Kids
Stack: 470mm · Reach: 360mm
Lustre 24
2025 · Kids
Stack: 470mm · Reach: 355mm
Tess 20
2025 · Kids
Stack: 430mm · Reach: 320mm
Nitrus Youth BMX
2025 · Kids
Stack: 420mm · Reach: 320mm
Impression Sidewalk
2025 · Kids
Stack: 380mm · Reach: 290mm
Mini Impression 16
2025 · Kids
Stack: 350mm · Reach: 270mm
FAQ
Short answers for choosing a size before purchase.
What Diamondback bike size do I need?
Start with your height and the mountain chart on this page, then confirm inseam and exact Diamondback model geometry before buying.
Is this Diamondback chart official?
This page uses official brand chart data. Confirm with official brand charts before purchasing.