Buying the wrong inner tube is frustrating and wastes money. Follow this simple 5-step checklist to get it right every time.
Step 1: Check Your Current Tire Size
Look at the sidewall of your current tire. You’ll see something like 90/90-18 or 3.00-18. Write this down — the new tube must match.
Step 2: Identify Valve Type
Remove the valve cap and look at the valve stem:
- Straight stem: Likely TR4 (most common) or AV/Schrader
- Angled 90°: TR13 (used when disc brakes block straight access)
- Thin metal stem with nut: Presta (rare on motorcycles)
Step 3: Measure Stem Length
Most motorcycle tubes use 32mm stems. Some deep-dish rims need 48mm stems. Measure from the rim surface to the valve tip.
Step 4: Choose Rubber Compound
| Material | Pros | Price Range |
|---|---|---|
| Butyl | Best air retention, durable | $5 – $12 |
| Natural Rubber | Flexible, budget-friendly | $3 – $8 |
| Latex | Ultra-low pressure loss, rare | $15 – $25 |
Step 5: Quantity & Brand
Buy in multiples. Keep at least 2 spare tubes on hand for touring. Stick with established brands for consistent quality.
Complete Checklist Summary
✅ Final Purchase Checklist
- Tire size matches (e.g., 90/90-18)
- Valve type matches (TR4 straight or TR13 angled)
- Stem length correct (32mm or 48mm)
- Butyl rubber preferred for best air retention
- Buy from a reputable brand
- Get at least 2 tubes for touring
- Include a valve core removal tool