Tire Load & Speed Index
iOS app by Shanghai Sheyuan Network Technology Co., Ltd.. Utilities · Shanghai Sheyuan Network Technology Co., Ltd.
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- 1.99 USD
- In-app purchases
- Unknown
- Version
- 1.0.3
- Listing last refreshed
- 2026-09-12
View the original store listing
Store description excerpt
Reading a tire sidewall and need to know what that load index number or speed letter actually means? This app decodes it instantly. Select any load index from 60 to 130 to see maximum weight per tire in both lbs and kg. Pick any speed rating from L to ZR to see the maximum speed in mph and km/h. WHAT YOU GET: - Load index to max weight conversion (lbs and kg) - Speed rating to max speed conversion (mph and km/h) - Quick reference table for common load indices (70-120) - Stepper control for fast index browsing LOAD INDEX RANGE: Covers indices 60 through 130 per ISO 4000-1 standard. Every value mapped to exact weight. SPEED RATINGS: L, M, N, P, Q, R, S, T, U, H, V, W, Y, and ZR — all with max speed values. Works completely offline. No account required. Built for mechanics, tire shop technicians, fleet managers, and vehicle owners who need fast tire spec lookups.
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