Creaky

As a guy who grew up wrenching on bikes in shops, at races, and in my own garage, I hate extraneous noises. Creaks. Squeaks. Squeals. Rattles. All of them are a sign of one thing - something isn't working correctly. Engineers don't design products to make noises they're not supposed to.

But chasing down a squawk or a ping can be tough. Bicycles are interconnected systems. A noise you think is emanating from one place could be someplace completely different. It's sort of like a water leak in your house. Where you see the puddle could be a LONG way from the source.

I've been wrestling one on my road bike for a little while. Like many, it started quietly and infrequently. And then grew louder. And louder. And louder. Kinda' like in Edgar Allan Poe's "Telltale Heart". OK, maybe it wasn't that loud. But in my head it was.

This one's from the drivetrain side, somewhere in the lower regions. After decades of listening to bikes, I can usually pretty quickly discern what type of issue I have. Carbon sounds different from aluminum. Aluminum sounds different from stainless steel. And so on. My creak is carbon-related. It's just got that pitch and cadence.

Carbon creaks are generally not good. Especially when you ride a carbon frame, like my Giant Defy Advanced Composite. But sometimes they're a minor issue - like a seatpost that needs a cleaning and a little carbon paste. Other times, they're an indicator of an impending failure. I've learned from fly rods that all it takes is minor weakening of structural integrity and chaos ensues.

But this one is weird. I know it's in the lower end, on the drivetrain side. It only happens when I come out of the saddle and hammer on the pedals. And it's very clearly only on one side. Oddly, somehow it feels outboard of the bottom bracket and it doesn't seem to travel up the frame.

Ah-HA! Cleats.

Cleats on cycling shoes are a lifelong pain in the ass. In the olden days, I remember nailing the cleats onto my Sidi shoes. Yep, you read that right - NAILING. Modern clipless systems have moved things forward tremendously, but still the cleat-shoe interface remains a trouble spot. This area takes a lot of stress, forces in all directions, and more. Three bolts (typically) connect the power of your legs to the bike's drivetrain. And, my Bont A-Three's have carbon soles. So, I re-tighten my bolts. Creak is still there.

Dammit!

On returning home from my first weeknight ride on Monday, I decided to investigate as the continued creak now has me thinking my frame is self-destructing. I also see plagues and locusts on the horizon.

One trick I've learned with cleats is the power of blue Loctite. If you don't keep some of this around the house, buy some. Today. Keeps problematic things with threads where they're supposed to be. So I figure time to tear down the right shoe and re-do the Loctite. First screw comes out easy, drop or two of thread sealant, re-torque and good to go. But the second one loosens, but then won't come free. Finally with some upward pressure from a screwdriver while twisting the Allen wrench it pops out. But wait - where's the threaded insert? I don't see it anymore.

Crap. Bonts are made in Australia. And while they make great shoes, they're in Australia. Just shipping something back to them takes weeks and costs at least $25. They're starting to get some US dealers, but I didn't buy mine from a dealer, so they'd have to go back to the Land Down Under. Then I notice something rolling around in the shoe. It's a regular old T-nut. And it's just popped out of the hole. After closer inspection the "teeth" that bite into the sole seem squashed.

Later that night, I find the Bont sells replacements for these (via Colorado Cyclist). Hmmmmm. This tells me this is not an isolated problem. So, I have some extras on order.

In the meantime, I have a backup pair. I'll be riding those tonight to see if my creak is still there or not. A report will follow.

-Sean-