Tag: fixing

Inflate A Bike Tyre With A Presta Valve Or Sports Valve

Find the valve and remove any dust-cap. If the presta valve hasn’t been opened for a while release a short hiss of air to check it’s not stuck. The same process, holding the valve open longer, deflates the bike tyre. A Presta valve is locked with a tiny acorn nut, unscrew this before you inflate […]

6 Weird Things Professional Cyclists Do On Their Bikes

– Pros live on their bikes, spending hours and hours in the saddle. And I mean, they get up to some pretty strange things, and I mean really strange. – Really strange. And so in this video, we’re gonna be explaining this, this, – (gasps) You’re stinking! – And even this. – (sighs) I’m so […]

Replace A Shimano Hollowtech Bottom Bracket On A Bike

Undo the pinch bolts, clamping the left hand crank to the axle, undo and remove the plastic preload cap. It’s only finger tight and is removed with a special plastic tool. Use a small screwdriver to lift the plastic safety tab. Wiggle the lefthand crank to loosen it and pull it off. Use a soft […]

Replace The Chainring On A Shimano Hollowtech Crankset On A Bike

Undo the pinch bolts, clamping the left hand crank to the axle. Undo and remove the plastic preload cap. It’s only finger tight and is removed with a special plastic tool. Use a small screwdriver to lift the plastic safety tab. Wiggle the left hand crank to loosen it and pull it off. Use a […]

Adjust A Bike Wheel’s Cup And Cone Rear Hub

Remove the wheel from the frame so you can acces the rear hub. On a rearwheel the cone and lock-nut on the drive side may not be accessible. The right side lock-nut and cone should be kept locked tight together and all adjustments done on the other side. If the right side lock-nut and cone […]

Inflate A Bike Tyre With A Schrader Valve Or Auto Valve

Find the Schrader valve and remove any dust-cap. If the valve hasn’t been opened for a while release a short hiss of air to check it’s not stuck. The same process, holding the valve open longer, deflates the tyre. Release air by pressing down on the valve stem. A match stick or some other small […]

Adjust A Bike’s Handlebars Attached To A Threaded Steerer

Measure how much of the handlebar stem is visible above the lock-nut on top of the headset. Use a tape measure before and after any handlebar adjustment or maintenance, that way you can go back if you don’t like the new position. Follow the line of the headtube to find the head of the expander […]

Set Up A Bike’s Cantilever Wheel Rim Brake

Clean the threads on the inside of the bosses and the matching threads on the cantilever brake bolts. If they’ve been used before, acetone is the best substance to remove old thread-lock glue. Handle acetone with care it’s volatile and flammable. The inside of the bosses need to ‘sticky’. Clean the outsides of the bosses. […]

Fix A Puncture – Remove A Bike’s Rear Wheel With Quick Release Skewer

Before you remove the rear wheel, select the gear that uses the least amount of chain; The fastest at the back, the slowest at the front. Open the brake. Rotate the handle on the quick release skewer through 180 degrees from the closed position to the open position. Stand behind the bike with your head […]

Open A Cantilever Bike Brake

One end of the straddle wire on a cantilever brake is clamped, the other is held by a nipple. Push the cantilever brake arm holding the nipple-end of the straddle wire against the rim. Pull the nipple in the other direction and unhook the cable through the slot. The cantilever brake is now open.