The Ultimate Tire Size Chart for Bicycle Rims

2026年5月21日 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 TeamMay 21, 2026