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What part of a mountain bike have you not broken, yet?

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#21 · (Edited)
twowheelmotion said:
Yeah that make sense. And I don't know what it is about Knolly bikes, but the people that I know that ride those bikes exclusively freakin send.
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And even if it was dirty, dirt doesn't break bikes, nor does surface rust on bolts. Most of my bikes look like that for weeks/months on end and nothing breaks because of it. I keep the drivetrain and anything that slides/rotates clean and seldom break stuff outside of impacts/crashes or improper installation. I grease things during assembly and do maintenance regularly-ish.

Broken stuff - more for sure but at least this:
  • 2 frames
  • 1 rear triangle
  • 1 frame pivot bolt (none of these first 3 were on the same bike)
  • Probably a half dozen rear wheels
  • A few spokes
  • 2 rear derailleurs
  • 4 or 5 pedals
  • 2 saddles (one was carbon rails...never again for mtb)
  • 1 chainring
  • 1 chain (poor install job)
  • Maybe 15-20 tires?
  • Many tubes (remember those? not sure they count or if anyone cares, but they're technically parts)
  • 1 set brake pads and caliper (forgot to replace pin)
  • 2 brake rotors
  • 2 dropper levers
  • 3 helmets
edit: adding a dropper cable and a shifter cable
 
#22 ·
Oo another time, my Fox Transfer dropper post failed on me. It would not hold in the extended position. Anytime I sat on it, the dropper went down. I didn't own it long. It pooped out after a couple months. I didn't want to deal with the repair so I picked up a recycled PNW dropper post.

I've also bent some saddle rails quite a few times in the past. Blew out a couple spokes on a new wheel build too.
 
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#23 ·
noapathy said:
And even if it was dirty, dirt doesn't break bikes, nor does surface rust on bolts.
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Entirely in my own opinion based off my experience in my own world dirt acts to eliminate lubrication in many circumstances which puts pressure on other working components which in turn could definitely assist in failure of working parts. The seat of the spoke nipple is one example of how even just a little bit of lube at the seat could make a lot of difference. As for stem bolts.. You've never turned a stem bolt that looked like that and the bolt cap broke off?
 
#24 ·
twowheelmotion said:
Entirely in my own opinion based off my experience in my own world dirt acts to eliminate lubrication in many circumstances which puts pressure on other working components which in turn could definitely assist in failure of working parts. The seat of the spoke nipple is one example of how even just a little bit of lube at the seat could make a lot of difference. As for stem bolts.. You've never turned a stem bolt that looked like that and the bolt cap broke off?
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I put linseed oil on the spoke threads when I build wheels. Prolly helps, but I never actively do anything to them except spray water to rinse off crud. 🤷‍♂️

Nope, never. I grease 'em going in and they come back out fine. Any time they're apart they get cleaned/re-greased.
 
#25 ·
Looks like a Nukeproof Horizon stem. IMO, one of the best stems ever made. Unfortunately they cheaped out on the hardware. I promptly changed out to stainless steel on mine.

Regarding the original question, over many many years, I've broken almost everything except a stem and handlebar. Over the last 10 years I've broken far fewer components than prior to that.
MTB components are made better these days. The early days, it was easy to break just about anything, especially frames.
 
#30 ·
I’m recovering from a skin graft on my forearm and I didn’t even break a part on that I’ll-fated jump except for tearing both ESI grips. Only ever broken some spokes and a saddle rail or 2 on the early carbon-railed saddles.
 
#34 ·
No broken axles (QR or thru)
Never broken a hub shell. But I turned several freehub bodies into scrap metal.
No BB has ever broken on me. Destroyed a few during installation though :(
No seatposts ever failed catastrophically (wood knocking). A Oneup dropper seized due to the mid cap coming loose and parts falling out. But I was able to repair it and it continues to live.
 
#36 ·
RickBullottaPA said:
A broken handlebar ain't far behind, depending on where it breaks...
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I was following my friend down a jump trail at Fernie Bike Park, and the right side of his handlebar fell off right after taking off for a 30’ table. It sheared off right at the stem.

The day prior, he hit a 20 foot drop to an inadequate landing and broke his seat off the rails. Probably had something to do with the handlebar failure…🤣
 
#39 ·
The most common thing that I haven't broken is a spoke nipple. I've also never hit my helmet on the ground despite riding almost every week since 1996.

The most uncommon thing to break that I have broken is a front rotor.
 
#40 ·
cookieMonster said:
I was following my friend down a jump trail at Fernie Bike Park, and the right side of his handlebar fell off right after taking off for a 30’ table. It sheared off right at the stem.

The day prior, he hit a 20 foot drop to an inadequate landing and broke his seat off the rails. Probably had something to do with the handlebar failure…🤣
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So... what happened? Does he still walk (or roll) among us?
 
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