How to Replace a Wheel Rim

I've been having fun shopping on AliExpress lately and came across a ton of TPU tube with lots of positive ratings. So, I'm planning to try them out. I love the idea of being able to pack a spare tube or two in a fraction of the space taken up by a butyl tube. There's also the chance to save a lot of weight, especially at the wheels. Current tubes: Continental. Weight 105g each. 2x in the wheels...

Hi, I have an older road bike. It's a 12 speed with the gear shift on the lower bar. The rear derailleur seems to work, that is it shift from the small sprocket to the largest, but it will not stay in anything beyond the the small one. I have replaced the cable and adjusted the high/low as in the video (thanks) but nothing is working, it will not stay in any other gears. ...

Ok I need to know if this is even possible? I noticed on other sites there are 6speed and 7 speed Adult tricycles. I was pondering the idea of modifying a Schwinn Meridian 2008 model into maybe a 6speed. Before I go any further is that even possible without getting into major work? If so, then what about expanding that idea into a 12speed by swapping out its current crank with an older Schwinn 1...

What causes the brakes to lock-up i have only rear foot brake on my cruiser im sure it has to do with the hub but was wondering if its an ez fix or major overhaul?...

Hello, As some of you know, I ride a fat bike everywhere, even for my bikepacking. Over the years, I've noticed that the same tire has been getting a lot of flats. Initially, I didn't think much of it, but this time, I found two tiny steel pin-like structures that were embedded strongly into the tire. I had to use pliers to pull them out, and they almost look like the thread of wires one sees wh...

Recently, I was in one of the local bike shops. Someone had brought a bike back to have the back wheel re-trued. There were actually cracks in the rim, originating from the spoke holes. I have had the same problem with my bike. In past decades you could buy a bike, and the wheels were strong. With modern rims, the aluminum is getting thinner and thinner. Now the rims crack. With heavy riders, a...

good afternoon, i have spent the last week cleaning and changing parts on my old 2009 Schwinn Meridian Trike . The rear axle is in need of lubrication. Where is this done? do I just remove the axle retention nuts on each side and lube the bearings? What is a good brand of bearing grease available at Oreilleys? Thank you...

I thought I would do a thread about how to do a quality refurbish on a bicycle that will be a good user trouble free for quite a while. The scope of this refurb will not contain content about dealing with battle scars it may have endured in its lifetime, primarily because the bicycle is merely an example of a solid platform to build from (vintage lugged frame circa 1990). Purchased for $15us ...

Hi everyone. A bit repetitive from my intro in GF, but this is the correct section for this post. I’m new to vintage bikes, but I’ve been eyeing a vintage Colnago to restore for a long time. Finally found one and the timing was right to pull the trigger. I’m still trying to identify the exact year, but from my research it’s 1991-1993 Colnago Super PiU. Mostly original, I think, apart from ...

I need a new rear wheel for a 26" firmstrong one-speed bruiser cruiser. I didn't realize there were so many different kinds. Can anyone tell me the axle size. I know it is 36 hole and it is a coaster brake but I don't know the axle size or gauge of spokes. The side of the tires says (557-59) 26 x 2.125. Can anyone give me some advice?...

I'm having trouble with my side pull brakes. One pad rests on the side, mostly stationary, while the other moves freely as I pull the brake lever. I'm fairly beginner at bike repairs, and having looked at youtube videos on recentering brakes, I loosened the mounting bolt, moved the calipers around so they were centred properly, and retightened the mounting bolt. However, after the mounting bolt h...

My 26-in coaster brake will not engage when I pedal it just spins and it won't break I've repacked them with grease multiple times tightened it too much didn't tighten it enough I can't figure it out...

https://www.youtube.com/watch?v=Ny_i51lMTrg https://www.classaction.org/blog/class-action-filed-in-wake-of-inadequate-shimano-hollowtech-crankset-recall...

Hey guys so I have ~50 years old Cosmos SuperCorsa and the only problem with it is that the rims are bent to the center. I want to replace them but I can't find the exact same brand at a good price. The wheels are from Campagnolo. The bike is 700c with 36 holes. The inner width is 13,5mm and the rim height is 18mm. Are the last 2 measurements not required or it should be exactly as the ones I have...

So I have a couple of questions that I hope someone in this group might know about or have experience with. This is for my Schwinn Meridian 7-speed trike. 1. Are the derailleur chain and the drive chain the same type? Obviously they're different lengths; and I assume the derailleur chain is a typical 7-speed chain. But what about the main drive chain? Same thing? Or is it a standard single speed ...