Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

1x9 on a roadie

Old 06-18-07, 03:45 AM
  #1  
z415
Senior Member
Thread Starter
 
z415's Avatar
 
Join Date: Apr 2006
Location: Gainesville/Tampa, FL
Posts: 2,343

Bikes: Trek 1000, two mtbs and working on a fixie for commuting.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
1x9 on a roadie

Is there anything wrong with going 1x9 on a road bike? I got a road bike last April and was all gung ho about training and racing and logged about 1.5k miles in 7 months, then I discovered mountain biking.

I went 1x9 on the mtb and love it. My roadie is cheap so the FD is very crappy (in the Shimano 2200 line) and I want it off. I had a 52/42/32 triple and I yanked off the granny to make it double. I find that I never use the 52 since I like to spin, but the 42 is a little on the easy side. So I was thinking of getting a chainring between those and getting a nice road rock ring thingey?. They have those fancy CF ones for track bikes and such. I already have one of those fang things for inside chain drops.

I mean, 1x9 pops up once a while in the mtb forums, but I've never seen it in the roadie forum so I wonder if it'll work. I have a good bike mechanical background so I know it will work, but there has to be some reason it doesn't seem to be that mentioned over in the road forum.. unless one of those peculiar roadie things like "flip it" or whatever.

Some assurance would be appreciated. Or some flaming to get me out of the idea, either or.
z415 is offline  
Old 06-18-07, 06:56 AM
  #2  
tellyho
Your mom
 
Join Date: Aug 2006
Posts: 2,543
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It will work.
tellyho is offline  
Old 06-18-07, 08:19 AM
  #3  
DiabloScott
It's MY mountain
 
DiabloScott's Avatar
 
Join Date: Sep 2006
Location: Mt.Diablo
Posts: 8,501

Bikes: Klein, Merckx, Trek

Mentioned: 56 Post(s)
Tagged: 0 Thread(s)
Quoted: 2103 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I've seen it on a cyclocross bike - -he left the FD on as an anti chaindropper device and adjusted the position for minimum rub in the extremes.
DiabloScott is offline  
Old 06-18-07, 08:32 AM
  #4  
San Rensho 
Senior Member
 
Join Date: Oct 2005
Posts: 5,655
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 136 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It will work, but you will probably have to give up the closest possible gearing. On a road bike, you want to have as little jump between gears as possible, which means having a 13-23 or a 12-21 cassette. If you go with say a 48t chainring, your lowest gear will be 56 inches with a 23 cog or 61 inches with a 21cog. Those gears are probably fine on the flats, but if where you ride has long hills, it might not be low enough. You would then have to go with a 25 or 27 tooth largest cog, which will give you big jumps in the intermediate gears.

Thats why a compact crank makes so much sense. Closest possible gears in two wide apart ranges.
__________________
Il faut de l'audace, encore de l'audace, toujours de l'audace

1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1
San Rensho is offline  
Old 06-18-07, 11:52 PM
  #5  
z415
Senior Member
Thread Starter
 
z415's Avatar
 
Join Date: Apr 2006
Location: Gainesville/Tampa, FL
Posts: 2,343

Bikes: Trek 1000, two mtbs and working on a fixie for commuting.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Well I am in Florida and I tackle most of the climbs with 42x16/17.

How about I go with the same chain ring or a 44 or something and get a smaller cassette. I have a 9s 12-23 by the way; does Shimano make an 11-19? I know there are companies that sell custom cassettes, but I'd rather stick with Shimano.

Another thing, when I went 1x9 on my mtb I had a slight problem with the chain rubbing the bashring when I was on the 12 cog. I fixed that by fiddling in my spare parts bin and finding spacers that fit around the chainring bolt and I placed them between the rings. Is there any place I can get those?

As for compact when I had money and wanted to upgrade my bike and make it raceworthy (in my eyes) I wanted to go compact and had all these upgrade lines up - I think that may have been my very 1st thread on BF - so I understand the advantages, but now I really despise front derailleurs because they seem clunky (well, the Shimano ones are relatively clunky) and the mess with trim and such just not worth it.

Thanks.
z415 is offline  
Old 06-18-07, 11:54 PM
  #6  
z415
Senior Member
Thread Starter
 
z415's Avatar
 
Join Date: Apr 2006
Location: Gainesville/Tampa, FL
Posts: 2,343

Bikes: Trek 1000, two mtbs and working on a fixie for commuting.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Never mind about those spacers... they seem to come with them.
z415 is offline  
Old 06-19-07, 02:05 AM
  #7  
biknbrian
Senior Member
 
biknbrian's Avatar
 
Join Date: Jun 2007
Location: Pittsburgh, PA
Posts: 352

Bikes: BiknBrian brand custom 26 inch commuter trekker, Cannondale F600 Single Speeded MTB, Nashbar Cro-Mo CX, some other bikes and parts that could be made into bikes.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Just joined the forum minutes ago. I too am in the process of building a 1x??(8,9,10). I live in western PA and wanted to build a bike as simple as possible, while still retaining the ability to get around quickly in the hilly countryside. I considered a 3x1, but then you still need a chain tensioner, so 1x?? it is.

With a properly trimmed front deraileur, the chain shouldn't rub much anyway, so I'm hoping to get away with no guides at all in front. We'll see.
biknbrian is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.