How to Use a Presta Valve Adapter

My front derailleur will not stay in second or third it will shift all the way to the third gear but once I let go of my shifter it will spring back to first. So unless I hold the shifter on my handle bar in the proper position I cannot stay in second or third. Haven’t adjusted anything I just bought the bike off marketplace....

  p6i6rfpm1ip41 (1).jpg (Size: 82.1 KB / Downloads: 326) Is there a way to get rid of that rust or do I need to replace certain components? More pics...

  IMG_4487.jpeg (Size: 72.34 KB / Downloads: 38) Hi I’m converting my 2010 via nirone 7 bianchi Alu carb from campagnolo to shimano . What bottom bracket will I need ? I’ll be fitting shimano ultegra either a 6800 50/34 or possibly a gtx 48-31 crankset . The bike has always had the stock bb the bike was shipped with in 2010. Currently it has a veloce power torque 50/34 fi...

Most people put brake rotors on so they rotate the correct way. But occasionally you might see one which has been put on the opposite way around. Does it matter? Can brake rotors fail if they rotate the wrong way?...

I am a little heavier than many cyclists. I ride longer distances than many cyclists. A lot of my riding is on rough tracks. In the past, many bikes I have ridden, have never had broken spokes. Some have had broken spokes, but it has normally taken at least two years before they have broken. Bicycle components are getting weaker. I bought a new 29 inch mountain bike. After 6 weeks, I had a bro...

Ciao. I know that some bike riders overexaggerate the 'cleaning part' and wash (or spray) their bikes at least once a week. I know, it's mandatory after a muddy trail ride. But I'm thinkging more about daily commuters. It gets dusty here and there, but how long is too long without a shower for a bike? For a bike that rides almost every day....

I am a little taller than the average cyclist, and a little fatter. Which makes me heavier than a lot of cyclists. I ride longer distances than many cyclists, and a lot of my riding is on rough tracks. When I started riding fat bikes, I would bend or break the axles in the back wheels. The hubs had cup and cone bearings, with freewheels. I am not really that heavy. Many people are heavier than me...

Recently, the brake pads wore out on my bike. I put a new caliper on the front. Not long after, I decided to try an experiment with the back brakes. One day I was out cycling, and went past a place which refurbishes truck brakes and clutches. Many truck brakes and clutches are riveted to the backing plate. When they are worn out, they drill out the rivets, remove the old one, and put on a new one...

The most common bikes with gears use a freewheel hub. Some bikes with gears have other types of hubs. Axles may bend and break in freewheel hubs. Heavy riders are more likely to bend and break axles than light riders. People riding on rough tracks are more likely to bend and break axles than people riding on smooth roads. Axles are more likely to bend and break in hard tails, than bikes with r...

How can I get my Eliminator Grid T9 tire off my rim? I've been at it for about an hour and it just doesn't want to come off....

In the past I have had a lot of punctures. When they happened, I patched the tube, but the holes in the tire were so small, they did not need patching. After many more kilometers, rubber started coming away around two of the holes in the tire, exposing the chords. If I did not do anything, a rock could cut the chords, destroying the tire. I wanted to get more use out of the tire. I cut patches fr...

Hi everyone! I hope you're enjoying a great start to 2023. I'm curious to hear your go-to method for getting a chain truly clean. I don't mean, just looks shiny or is good enough for a quick clean after a ride. I want to know what you do when you want to get every last morsel of ground-up, link-destroying, roller-eating, tooth-gnashing crud out of your chain. The Best Chain-Cleaning Recipe Ever?...

Hi, I just got a new adult tricycle that is an 8-speed. It only has one chain ring in the front, no derailleur, and the gears are in the back. I assembled it and at first, it was working fine but then the bike stopped moving when I pedaled. I noticed the crank arms move but the front chain ring does not. It will however move if I pedal backyards. Any idea what it could be? I assume it is somethin...

Is it possible to put an 11-40 cassette on Ultegra di2 (8150, medium cage)? Bike is a Fezzari Empre SL road endurance bike with Zipp 300s wheels (Shimano micro spline hubs). Chainrings are 50/34. Alternatively, can I put a 32T chainring in front? I'm 65 with a heart transplant and ride in REALLY high/steep Colorado mountains. Thanks....

Hi have a hybrid bicycle with Shimano gears. The rear casset takes a shimano fitting. What I'm interested in is identifying the bottom bracket so I can buy the correct removal tool. Please see the photo attached. There are 4 groups of 4 notches running along the inside of the bracket bolt holding in the bearings. From what I understand I need a shimano tool of some description but I could b...