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The Ultimate Tire Size Chart for Bicycle Rims

May 21, 2026 3 min read Guides & Tips

The Ultimate Tire Size Chart for Bicycle Rims

Based on ETRTO (European Tyre and Rim Technical Organisation) standards and real-world test data, this chart helps you quickly select the safest and best-performing tire width for your rim’s inner width. Incorrect matching may lead to poor handling, increased puncture risk, or even tire blow-off.

1.Core Matching Principle

Recommended tire width ≈ rim inner width × 1.4 – 2.2

(For mountain bikes, up to ×2.5 is acceptable; for road bikes, we recommend ×1.4 – 1.8)

Narrower inner width → narrower tires (road / climbing)

Wider inner width → wider tires (gravel / AM / DH) 2. Detailed Matching Table by Wheel Set Model

1. MTB Series(29er)

SIZE
IW
Bead Type
Version
Weight(g)
Tire Width
XC-30
30mm
Hookless
Ultralight
230±10
2.35"–2.4"
XC-30
30mm
Hookless
Flyweight
238±10
2.35"–2.4"
XC-30
30mm
Hookless
Standard
275±10
2.35"–2.4"
XC-31
31mm
Hookless
Ultralight
230±10
2.35"–2.4"
XC-31
31mm
Hookless
Flyweight
240±10
2.35"–2.4"
XC-31
31mm
Hookless
Standard
275±10
2.35"–2.4"

SIZE	IW	Bead Type	Version	Weight(g)	Tire Width
AM-32	32mm	Hookless	Flyweight	350±10	2.3"–2.8"
AM-32	32mm	Hookless	Standard	380±10	2.3"–2.8"
DH-30	30mm	Hookless	Flyweight	470±10	2.2"–2.7"
DH-30	30mm	Hookless	Standard	570±10	2.2"–2.7"

Want to learn more about this type of wheelset? Click the link below:

LT WXC-30 Disc - 29er Ultralight Pro Carbon Wheelset

LT WDH-30 Disc 29er Carbon Wheelset Ultralight with IW/Depth 30/19.7
Hookless Important Notice:
Must use tubeless tires specifically designed for hookless rims.
Maximum tire pressure: 40 psi (2.76 bar) — exceeding this may cause tire blow-off / unseating.
Do not install traditional clincher tires (those that require an inner tube).

2.Road and Climbing Series(700C)

SIZE
IW
Bead Type
Version
Weight(g)
Tire Width
R23-28
23mm
Hook
  Flyweight
250±10
23C-43C
R23-28
23mm
Hook
  Standard
265±10
23C-43C
R25-38
25mm
Hook
  Flyweight
285±10
28C-50C
R25-38
25mm
Hook
Standard
310±10
28C-50C
R25-50
25mm
Hook
  Flyweight
335±10
28C-50C
R25-50
25mm
Hook
Standard
365±10
28C-50C
SIZE IW Bead Type Version Weight(g) Tire Width
GR25-45 25mm Hook Flyweight 320±15 23C-43C
GR25-45 25mm Hook Standard 335±15 23C-43C
GR25-55 25mm Hook Flyweight 350±15 23C-43C
GR25-55 25mm Hook Standard 365±15 23C-43C

Want to learn more about this type of wheelset? Click the link below:
LT WR23-28 Disc - 700C Ultralight Pro Carbon Wheelset

LT WR25-50 Disc 700C Carbon Wheelset Ultralight with IW/Depth 25/50mm

✔️ Advantages of Hook (Clincher) Rims:
Compatible with traditional clincher tires and tubeless tires
More flexible tire width range.

3.Gravel Series

SIZE	IW	Bead Type	Version	Weight(g)	Tire Width
WG32-45	32mm	Hook	Flyweight	365±10	42C-70C
WG32-45	32mm	Hook	Standard	395±10	42C-70C
WG32-56	32mm	Hook	Flyweight	415±10	42C-70C
WG32-56	32mm	Hook	Standard	455±10	42C-70C

Want to learn more about this type of wheelset? Click the link below:
LT WG32-45 Disc - 700C Ultralight Pro Carbon Wheelset

4.Safety & Performance Reminders

Narrow tire on a wide rim → The tire may detach from the rim during cornering, resulting in poor lateral support and an increased risk of punctures.
Wide tire on a narrow rim → The tire deforms excessively, causing high rolling resistance and sluggish handling.
Hookless rims:
Strictly follow the maximum tire pressure limit
Use only tires labeled "Hookless compatible" or "Tubeless Ready for hookless".
Based on ETRTO (European Tyre and Rim Technical Organisation) standards and real-world test data, this chart helps you quickly select the safest and best-performing tire width for your rim’s inner width. Incorrect matching may lead to poor handling, increased puncture risk, or even tire blow-off.

LLight Travel TeamLight Travel Cycling TeamMay 21, 2026

The Light Travel Cycling team tests and reviews carbon wheelsets and shares product news, riding tips, and tech insights from the workshop and the road.

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