c/bicycle-mechanics

Spent 4 hours on a seized freehub body that just needed a 5mm hex key and a dead blow hammer.

It was a 2018 Shimano 105 hub that had never been opened, and I was about to order a whole new wheel before the old shop manager walked by and said 'did you try hitting it?', which saved me about $200.

Pro tip: check your quick release skewers after every wash

I was finishing a tune up on a customer's gravel bike, a Trek Checkpoint, and gave it a quick rinse in the wash bay. The front wheel dropped out when I lifted the bike, because the QR lever had been bumped open just enough during washing. It happened fast, and the fork ends got a small scratch. How do you guys make sure QR levers stay fully closed and seated after cleaning a bunch of bikes in a row?

Found a weird way to stop a creaky seatpost on a vintage Schwinn

Last month, a customer brought in a 1983 Schwinn Le Tour with a creak that sounded like a rusty gate hinge every time he pedaled. After cleaning and greasing didn't work, I wrapped a single layer of plumber's Teflon tape around the post where it met the clamp, and the noise vanished completely. Has anyone else had luck with this trick on older steel frames?

Had a guy bring in a bike with a stripped crank bolt in Denver

He said he tried to fix it himself with a cheap hex key from a gas station kit. The bolt was so rounded you couldn't even see the flats anymore. I spent over an hour with an extractor bit and a ton of heat just to get it out. What's your go-to method for a totally wrecked crank bolt?

Had a customer bring in a bike with a cassette held on by a zip tie

Guy comes into the shop in Phoenix last Tuesday. Says his gears are skipping. Look at the back wheel and the lockring is gone. Someone used a heavy duty zip tie through the spokes to hold the whole cassette on. Took a photo before I touched it. Had to explain why that was a very bad idea. Ever seen a 'repair' that made you just stop and stare?

Stopped at a truck stop outside Flagstaff and saw a bike rack made from old cassette chains

I mean, it was this huge rack welded together from like 50 old 10-speed chains, all just kind of tangled and bolted to a post. Idk, maybe it's just me, but the thought of trying to lock a bike to a bunch of moving parts gave me a headache. Has anyone else seen a repair stand or tool made from bike parts in a weird place?

A customer's simple note about my brake work made me change my whole process

A regular brought his road bike in last month and wrote on the work order, 'front brake still rubs a bit after last tune-up.' I checked my work and sure enough, the pad was just kissing the rim. I used to just eyeball the centering with the barrel adjuster. Now, I always loosen the mounting bolt, squeeze the brake lever to center it, and re-tighten before I even touch the adjuster. It adds maybe 30 seconds per wheel but the brakes are dead silent every time. Has anyone else picked up a small trick like that from a comment?

Had a customer bring in a bike with a squirrel nest in the seat tube

This was at my shop in Eugene last spring. A guy rolled up with his mountain bike making a weird rattling sound, and when I flipped it over, a baby squirrel fell out of the seat tube into my parts tray. I had to very carefully fish out the rest of the nest, which was mostly shredded dollar bills, with a bent spoke. Anyone else ever find wildlife living in a frame?

Hot take: I was at the salvage yard in Spokane and saw a guy using a motorcycle chain breaker on a 10-speed

He said it works perfectly for those old, hardened rivets that regular tools struggle with. Anyone else ever used a tool from a different trade like that?

I finally had to pick between a full rebuild or just replacing the worn parts on a 1992 Stumpjumper

The bottom bracket was shot and the headset was crunchy, but the frame was solid. I could have bought a new cartridge BB and headset for about $60 total and called it good. Instead I spent three days and over $200 on a full strip, repack, and polish, keeping every original part that still worked. It rides like a dream now, but my wife thinks I'm nuts for the time it took. Anyone else get stuck on a full restore when a simple fix would have done the job?

Stuck for a full day on a seized bottom bracket in a steel frame

Had a 90s steel road bike come in with a square taper bottom bracket that would not budge, even with my longest breaker bar and a ton of penetrating oil. I ended up building a jig to hold the frame and using a 4-foot pipe on the tool, which finally broke it free after about 8 hours of trying different things. What's your go-to method for a bracket that's really stuck in there?

Serious question, is a dab of grease on a derailleur hanger bolt ever okay?

I was working on a Trek Checkpoint yesterday that had a creaky rear end. The hanger bolts were bone dry, so I put a tiny bit of Phil Wood grease on the threads before torquing them to spec, maybe 8 Nm. The creak was gone instantly. An old mechanic I know swears this is a bad idea, saying grease can cause over-torquing and hide a bent hanger. But in my experience, a little anti-seize on steel bolts in an aluminum frame just makes sense for future service. Has anyone else tried this, or do you always keep those threads clean?

Stopped by the old bike co-op in Austin. They still have that 1980s Park Tool wall chart up.

Heard a customer at the shop say all new bikes need a full tune-up right away

I was building up a new Trek Checkpoint for a customer yesterday and overheard another mechanic telling someone that every new bike, straight from the box, needs a complete professional tune before riding. That just seems like a waste of money to me. The shop I worked at in Denver did a full safety check and minor adjustments on assembly, and that was always enough. Most decent brands have decent factory setup now. Has anyone else found that a basic assembly check is fine for most new builds?

PSA: I finally understood why that old guy at the co-op in Eugene always insisted on using a specific grease for freehub bodies after mine seized up last week.

I used a cheap, heavy waterproof grease on a customer's mountain bike freehub in the fall, and when they brought it back frozen solid, I had to spend 3 hours cleaning and replacing the whole assembly, so what's your go-to freehub grease for wet climates?

Why does nobody talk about the difference a proper bearing preload makes on old cup-and-cone hubs?

I just rebuilt a set of Shimano 600 hubs from the 80s that had been sitting for years, and the before-and-after in smoothness was huge. The key was using a cone wrench to get that tiny bit of drag just right, not just cranking them down. Anyone have a good trick for setting that preload without a special tool?

Question about the new bike lane setup in downtown Portland

I was there last week and saw they put in those concrete curb separators every 50 feet... I know a lot of people think they're safer, but they make it a real pain to get a service van in for a roadside repair. Had a call for a flat on a cargo bike and had to park two blocks away and walk all the tools over. Has anyone else had to deal with this kind of access issue?

Heads up on the new Shimano 12-speed quick link design

Honestly, I used to treat all quick links the same and just snap them on with my fingers. After a customer's chain came apart on a climb last month, I looked closer at the new CN-M8100 links. They have a different lock plate and need the TL-CN10 tool to seat them right. Ngl, I've seen three come back loose in the last two weeks from other shops in town. Anyone else having to adjust their process for these?

Had a customer bring in a bike with a cassette held on by a zip tie

This was at my shop in Boise last Tuesday. The guy said his 'buddy' fixed it for him after the lockring threads stripped. The zip tie snapped after about 3 miles, obviously. I had to explain why a $12 lockring tool and a new freehub body was the only real fix. Has anyone else seen a 'repair' this creative?

I think we're all wrong about using a torque wrench for every single bolt

Just had a customer bring in a gravel bike with a stripped seatpost clamp bolt, said they torqued it to spec with their new wrench. This was the third one this month. I've been building bikes for 15 years and I think we've made new mechanics scared to feel the bolt. My old boss in Austin taught me to go by feel for stuff like clamps and bottle cages, and I've never had a failure. Sure, use it for carbon or cranks, but for a basic aluminum seatpost? Sometimes the tool makes you overthink. How many of you actually reach for the torque wrench for every little thing on a steel frame?

Pro tip: I just wasted $80 on a 'universal' bottom bracket tool that didn't fit a single bike in my shop.

The spline pattern was off by maybe a millimeter, but that was enough to strip the edges on a customer's BB30 and cost me an extra hour of work to fix, so has anyone found a truly reliable brand for oddball bottom brackets?

Pro tip: I watched a guy at the co-op use a 10mm wrench on a 14mm axle nut.

He forced it, stripped the corners, then argued it was the right tool. This was in Portland last Tuesday. How do you politely correct a customer who's about to wreck their own bike?

Heard a customer say they always use WD-40 on their chain

I was ringing up a guy buying a new chain at the store yesterday. He told his friend, 'I just spray it with WD-40 after every ride, keeps it quiet.' I didn't say anything, but it made me think about how many people might be doing that. It cleans for a minute but leaves the chain dry and attracts grit fast. What's the best way you explain to a customer why that's a bad idea without sounding like you're talking down to them?

Question about those cheap headset press kits online

Bought one for $40 last month and the aluminum drift tubes bent on the third install. Anyone have a brand they actually trust for this?

I tried to fix a creaky bottom bracket with a whole tube of grease

The customer said it sounded like a haunted house, so I figured more grease was the answer. I packed the cartridge bearings so full that grease started oozing out of the frame gaps when I tightened it. The creak was gone, but the bike weighed about two pounds more and left a slick trail on my shop floor. Has anyone else had a simple fix turn into a bigger cleanup job?