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This is what's wrong with The Industry™

Jm_

sled dog's bollocks
Jan 14, 2002
19,056
9,712
AK
Come on now, the shit in the 2000s was compounded and chain-extraction from the guide became required field-surgery for any DHer.

Those days are pretty long gone.

Everyone had to run a chainguide, it was the ONLY way to keep a chain on and the chains would jam in said chainguide and against the frame. I mean hell, we didn't even have quicklinks back then anyway. Now, endurpo frames rarely run chainguides, rarely drop chains, it's just isn't the same hazard that it used to be. About the worst you are going to get is dropping the chain between the cassette and hub/frame, becaus you didn't hae it adjusted right and in both cases, you can just yank that shit out and pull some metal burrs at the same time. The only time I start throwing a chain is when my front ring starts to wear significantly, which is pretty far down the road.
 

kidwoo

Artisanal Tweet Curator
Now, endurpo frames rarely run chainguides, rarely drop chains,

eyesdarting.gif




no one is saying newer systems aren't better because they obviously are

but I've never, EVER had a trail bike that didn't throw chains with NW rings and clutch deraileurs

I don't doubt that some people can get away with it, that was the entire selling point way back when sram started making them. But (shocker) they don't work exactly as advertised on really rowdy stuff
 

mykel

closer to Periwinkle
Apr 19, 2013
5,132
3,849
sw ontario canada
Narrow wide and an upper guide and I will throw a chain a couple times a year on the trailbike. The DH bike has an upper, lower and old non-nw renthal ring. I might throw a chain once in a weekend of park play. I have not used an on-trail chain tool in years, I think the last time it was a 9 speed snapped chain at a bike park. I still carry a chain tool and a couple quick links, cause as soon an I don't...
 

6thElement

Schrodinger's Immigrant
Jul 29, 2008
16,061
13,310
I still use the oneup bashguide on my trail bike because otherwise I'd be sacrificing expensive chainrings and chains to the rocks every few rides.
 

Gary

"S" is for "neo-luddite"
Aug 27, 2002
7,766
5,670
UK
could never get any bike I rode on real singletrack stuff to not still throw chains without a guide
TBF it does depend on the full drivetrain set up.
Big wide range cassette and the long flappy chain and long cage derailleur required and tiny NW chainring* = weak retention. & SRAM clutches = MOAR weakerer
And if this is the sort of drivetrain you use you there's a far greater chance you'll still need a top guide

Whereas if you use a decent sized NW chainring, smaller, closer ratio (11-36 or less) cassette, short chain, shimano short cage mech (zee/saint) with minimal B tension you may well get away with no guide. Cut down the cassette to 5spd 12-19 and space everything for optimum chain line and there's a good chance you won't even for DH use.
Lower guides are rarely required anymore. One caveat would be if you backpedal to switch feet/crank position a lot using full width cassettes (or chain line is poor in descending gears) Particularly while braking over steep or tight jank.
I found a lot of full top/bottom DH guides to always cause issues once mud got involved

*fannies running silly little oval rings are just asking for trouble. Even with a top guide
 

Toshi

Harbinger of Doom
Oct 23, 2001
38,473
7,826
I still use the oneup bashguide on my trail bike because otherwise I'd be sacrificing expensive chainrings and chains to the rocks every few rides.
the cat-belly of the motor on my non-acoustic bike protects my chainring

: pointing to forehead.gif:
 

kidwoo

Artisanal Tweet Curator
TBF it does depend on the full drivetrain set up.
Big wide range cassette and the long flappy chain and long cage derailleur required and tiny NW chainring* = weak retention. & SRAM clutches = MOAR weakerer
And if this is the sort of drivetrain you use you there's a far greater chance you'll still need a top guide

Whereas if you use a decent sized NW chainring, smaller, closer ratio (11-36 or less) cassette, short chain, shimano short cage mech (zee/saint) with minimal B tension you may well get away with no guide. Cut down the cassette to 5spd 12-19 and space everything for optimum chain line and there's a good chance you won't even for DH use.
Lower guides are rarely required anymore. One caveat would be if you backpedal to switch feet/crank position a lot using full width cassettes (or chain line is poor in descending gears) Particularly while braking over steep or tight jank.
I found a lot of full top/bottom DH guides to always cause issues once mud got involved

*fannies running silly little oval rings are just asking for trouble. Even with a top guide
"it works, just not in any kind of functional setup for someone who rides in mountains"

I used 11sp sram stuff, the exact configuration sram designed the entire initial system for

I just bang shit, bro!
 
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mykel

closer to Periwinkle
Apr 19, 2013
5,132
3,849
sw ontario canada
Just out of curiosity... How many of you run a bash guard of some description? For me it is just sop, don't think I would ever consider not doing so as long as chainrings are exposed.
 

6thElement

Schrodinger's Immigrant
Jul 29, 2008
16,061
13,310
Just out of curiosity... How many of you run a bash guard of some description? For me it is just sop, don't think I would ever consider not doing so as long as chainrings are exposed.
As above, oneup bashguide on my trail bike.
 

OGRipper

back alley ripper
Feb 3, 2004
10,658
1,129
NORCAL is the hizzle
I have neither guide or bashguard on my regular/meat bike (Bronson). I probably drop a chain once or twice a year, maybe, but I prefer the cleaner/lighter setup. I have a top guide on my ebike, but no bash. XO 12spd on both. For sure I'd have both on a DH bike if I still had one though.
 

jrewing

Monkey
Aug 22, 2010
269
171
Maydena Oz
Never ever drop chains anymore. Broke more chains than dropped. Xt 42 granny, 32t front but i do have bent spider tabs on my xtr 165mm cranks. Could do with a bash guard.
7spd Gx with Stfu on both bikes actually, and wait for it… Ochain on the DH!
Broken chains were mostly shit quick links.
 
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Avy

Turbo Monkey
Jan 24, 2006
1,169
391
Never ever drop chains anymore. Broke more chains than dropped. Xt 42 granny, 32t front but i do have bent arms on my xtr 165mm cranks. Could do with a bash guard.
7spd Gx with Stfu on both bikes actually, and wait for it… Ochain on the DH!
Broken chains were mostly shit quick links.
I tried to find a shot on here,but could not. It was a Pro on a Black I think Forbidden DH on a Compression Shot where his chain is Off. it was a great shot.

It happens a lot IMHO with the Pro’s,but I guess most are snapped chains. Also we are not Pro’s,but the topic made me think of it.

Avy

Actually we do have Pro’s here,sorry.
 

kidwoo

Artisanal Tweet Curator
I have neither guide or bashguard on my regular/meat bike (Bronson). I probably drop a chain once or twice a year, maybe, but I prefer the cleaner/lighter setup. I have a top guide on my ebike, but no bash. XO 12spd on both. For sure I'd have both on a DH bike if I still had one though.
doesn't count


rocks move when you hit them

the rest of us have to chatter across that shit
 

Andeh

Customer Title
Mar 3, 2020
1,046
1,016
Just out of curiosity... How many of you run a bash guard of some description? For me it is just sop, don't think I would ever consider not doing so as long as chainrings are exposed.
OneUp BashGuide
 

Westy

the teste
Nov 22, 2002
54,544
20,344
Sleazattle
is that the secret to making dark manporn for seth?

I'll go get one if it is.


make that dude run screaming like a little kid who regrets ever thinking of hitting that play button
Guessing these are mutually exclusive

A wheel building instructional video on the other hand...
 

SylentK

Turbo Monkey
Feb 25, 2004
2,347
888
coloRADo
Do you guys ride bikes with out a some sort of chain guide? Like maybe a little MRP thingy? If not, I'd like to hear your secret.

Like, narrow/wide chainrings, clutch derailuers, blah. They all wear out. For me, as few as a couple of laps. The chain guide is the key. At least to me.

I am from COlorado, and in extension, must support Mr.P. Full disclosure.

:D
 

HardtailHack

used an iron once
Jan 20, 2009
6,796
5,693
Do you guys ride bikes with out a some sort of chain guide? Like maybe a little MRP thingy? If not, I'd like to hear your secret.

Like, narrow/wide chainrings, clutch derailuers, blah. They all wear out. For me, as few as a couple of laps. The chain guide is the key. At least to me.

I am from COlorado, and in extension, must support Mr.P. Full disclosure.

:D
On my hardtail I could get away with not running one, 11-36 cass with short cage Saint Mech.
Dropping drink bottles was way more of an issue but I did add a guard/guide coz I damaged a couple of chains being slow and fat.
 

HardtailHack

used an iron once
Jan 20, 2009
6,796
5,693
I don't understand that.
It had OChain, that's all the physicses I need.
 

HardtailHack

used an iron once
Jan 20, 2009
6,796
5,693
When you think you've found the perfect frame then spot that it has Drop Optimised Geometry, whatever that is.
600mm stack height, fuck right off!
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