Tire
How to tell when a tire needs replacing and what to match when you buy a new one.
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The tire is the rubber casing and tread that meets the road.
What it's used for
Beyond grip, the tire protects the tube or holds the sealant in a tubeless setup. Park Tool says to replace a tire whose casing is damaged, and to check sidewalls and the bead for rips and holes (Park Tool tire guide).
What to look for
- The same size as your current tire. Park Tool notes tire bead diameter standards are not interchangeable (Park Tool). Your owner's manual lists the original size.
- Tube or tubeless. If you aren't sure which your bike uses, Park Tool suggests checking the bike's manual or asking the seller (Park Tool e-bike tools). Tubeless needs a tubeless-compatible tire and rim (Park Tool tubeless guide).
- A pressure range that fits your use. Recommendations are printed on the sidewall (Park Tool).
Using it safely
- Check the tread for nails, glass or thorns, and squeeze any cut to look for slivers (Park Tool).
- When mounting, check the molding line just above the rim. If it bulges upward, deflate right away and reseat the tire (Park Tool).
- If a bead is tight, use soapy water rather than grease or oil, and avoid sharp tools (Park Tool).
- For a hub motor wheel, follow your manual or the guide below for removing the wheel.
Best price we found
- Kenda Krusade fat e-bike tire, 20 x 4.0, at Performance Bicycle: $61.95, checked Nov 9, 2026 (back order)
- Schwalbe Big Ben Plus, 27.5 x 2.15, GreenGuard, E-50 rated, at Performance Bicycle: $54.87, checked Nov 9, 2026 (back order)
Performance lists the Kenda Krusade as fitting fat e-bikes such as the RadRunner. Match the size on your sidewall. Prices change often, and a local shop may match them.
Guides that use it
Sources
Guides that use this
- Aventon Level.2: parts and specs
- Aventon Pace 500.3: parts and specs
- How to fix a spongy brake lever
- Install tire liners
- Lectric XP 3.0: parts and specs
- NIU KQi3 Pro, Max and Sport: flat tire or tire keeps losing air
- Rad Power Bikes RadCity 5 Plus: parts and specs
- Rad Power Bikes RadExpand 5: parts and specs
- Rad Power Bikes RadRover 6 Plus: parts and specs
- Rad Power Bikes RadRunner 1 and RadRunner 2: parts and specs
- Rad Power Bikes RadRunner 3 Plus: parts and specs
- Rad Power Bikes RadRunner Plus: parts and specs
- Rad Power Bikes RadWagon 4: parts and specs
- Rad Power Bikes RadWagon 4: tire keeps going flat or blows out
- Ride1Up Core-5: parts and specs
- Set up tubeless tires and keep the sealant fresh
- Velotric Discover 1: parts and specs
If these steps didn't fix it, find a shop near you in our partner network of shops that work on electric rides.
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