KENDA 275/300-17 (70/100) TR4 TUBE

A replacement motorcycle inner tube from Kenda, sized to suit 17-inch wheels running 2.75-17 or 3.00-17 tyres (metric equivalent 70/100-17). It is fitted with a TR4 straight metal valve stem, the common pattern for spoked motorcycle rims.

Suited to riders of small-capacity road bikes, trail and off-road machines, postie bikes and scooters running tube-type wheels. Worth keeping a spare in the workshop or trail pack, as tube failure is the most common cause of a roadside or trackside stop.

Check your tyre sidewall marking and existing valve type before ordering, as valve stem pattern must match the hole in your rim.

• Suits 2.75-17 and 3.00-17 tyre sizes
• Metric equivalent size 70/100-17
• TR4 straight metal valve stem for spoked motorcycle rims
• Direct replacement spare for tube-type 17-inch wheels
• Kenda part number KN2085

• 1 x Kenda 275/300-17 TR4 inner tube

Confirm the tube size matches the tyre sidewall marking and that the TR4 valve stem suits the valve hole in your rim before fitting.
Always fit a new tube with a new or sound rim tape (rim band) covering the spoke nipples, as exposed nipple ends will chafe through the tube.
Inspect the inside of the tyre and the rim well for grit, stones and sharp edges before installation.
Dust the tube lightly with talc, or use a tyre-fitting lubricant on the tyre bead only, so the tube can settle without binding.
Inflate the tube just enough to hold its shape before installing it, then work the tyre bead on with tyre levers kept clear of the tube to avoid pinching it.
Seat the valve stem square to the rim before fully inflating, and fit the valve nut finger-tight against the rim rather than clamping it hard.
Where a rim lock is fitted, position the valve stem and rim lock as originally arranged and keep the rim lock nut loose until the tyre is seated.
Check tyre pressures cold and regularly, tube-type tyres lose pressure faster than tubeless, and running under-inflated is a common cause of pinch failures.
Store spare tubes flat or loosely coiled in a cool, dark, dry place, away from direct sunlight, ozone sources such as electric motors, and petrol, oils and solvents.
Do not reuse a tube that has been patched multiple times, has a damaged or torn valve base, or shows perished or cracked rubber.