1x8 query

[Mike Muz]

Hi folks

I'm thinking of going 1x8 on one of my bikes. The only problem I see is stopping the chain from jumping off the top of the chainring.
Don't want to fit a bb mounted tensioner. Would i need to get one of those narrow/wide ring thingies? which I really don't want to do either TBH.
Any ideas

Thanks

Mike

 

[Remko]

Re:

No ideas but a little experience. Prepared my bike with a 1x8 a few years ago. Can't do without a good chainguide. I rode without and it was hell.
But hey, light weight and clean

 

[Mike Muz]

Re:

When I used to race, I fashioned one from a teaspoon hung from the bottom bottle cage mount on the seat tube. Good idea but I needed 7 scoops in my tea when I took it off !

Mike

 

[Remko]

Re:

:mrgreen: :mrgreen: :facepalm:

 

[wadsy]

Re:

'Narrow-wide' ring works well, I have one fitted to my Santa Cruz Superlight, or one of these maybe?...

http://www.ebay.co.uk/itm/Gussett-Lil-C ... 3f457b1694

Cheers

 

[gradeAfailure]

http://www.superstarcomponents.com/en/x ... nguide.htm
Pretty colours...

Narrow/wide chainrings are 4-bolt only AFAIK, so you won't find one for retro 5-arm cranks.

EDIT: Wolftooth and AbsoluteBlack do 110BCD N/W chainrings but I can't find any 94BCD.

 

[xerxes]

Re:

I rode around on a 1x7 for years with no chain device or special chainrings with no issues whatsoever.

I suggest you try it with nothing, you may find that you don't need anything.

Once you've got a single chainring, you can probably shorten the chain a bit so that it's a bit tauter than it normally would be on the middle or granny ring, whilst having enough length for a larger ring.

 

[kingoffootball]

http://www.superstarcomponents.com/en/xcr-st-mount-chainguide.htm
Pretty colours...

Narrow/wide chainrings are 4-bolt only AFAIK, so you won't find one for retro 5-arm cranks.

EDIT: Wolftooth and AbsoluteBlack do 110BCD N/W chainrings but I can't find any 94BCD.

SRAM and Blackspire both do 94mm BCD narrow-wide chainrings and I think I found one or two other makes - just none with a tooth count as high as I wanted.

 

[gradeAfailure]

Not 5-arm though...

 

[jimi911]

I have not hat a single issue with my wife's 1x7, my old 1x8, and my current 1x10. Chain length and alignment is the key. Sometimes you need to space the BB contrary to factory spec depending on your crank setup, but you shouldn't need a tensioner. I've run both standard shimano, and narrow raceface.

It really is the optimal setup for so many trails. I put 3x6/7/8 on all my builds because its period correct, but in terms of riding and enjoyment those two extra front rings are pointless on my trails.