I own a few sites related to bicycle parts. Am thinking of buying a few more domains. Any suggestions on bike parts that don't have good sites?
1) Buy a Presta Valve Adapter. This will let you use a regular bicycle pump with your presta valve tire.
2) Drill out the hole in your rim, so it will fit a schrader valve tube. Drilling a hole is not recommended because the hole is the weakest point in the rim -- so making it bigger makes the entire rim weaker. It is also probably easier and quicker to buy an adapter and use the regular tube.
Presta valves use a smaller diameter hole in the rim, which
makes the rim much stronger -- the hole is the weakest point in the
rim. A presta valve is important for narrow rims, mountain bike
wheels, and higher pressure tires -- anywhere where strength and
endurance are important.
The last thing you want to do is taco your rim, because you weakened it by drilling a hole for a schrader valve. Instead buy a presta valve adapter.
A presta valve is a valve with a very narrow stem that is found
on some mountain bikes and high performance bicycle tires.
The advantage of the presta valve is that it has a smaller diameter than the standard Schrader valve, which means you have smaller whole drilled through your rim. The hole in the rim is the weakest point in the wheel, so it a smaller hole means a stronger wheel.
Unfortunately, most common bicycle pumps use the larger Schrader valve, because that valve is also used on car tires. So, to use a regular bicycle pump, you must buy a Presta Valve adapter.
There are also Presta valve pumps available for purchase.