Show me your 2X9 setup...
- Thread starter ridevintagemtb
- Start date
it's not very retro is it? 2x9 - unless you track down and go with the Ritchey versions - which was quite cool but a pain in the bum to setup first time round.
i've been using 2x9 for ages - since my Ritchey setup died, currently using race face turbines 94bcd, boone ti rings 29/42 - 44 shown in the pic, but the 29/44 was too big a jump.
biggest issue is chainline, with a 113mm square taper BB the chainline was off and i'd consistently drop chains when downshifting the rings low in the cassette range, moving to 107mm cured that. am currently using these cranks and rings on a 2006 RacerX with a Phil Wood 108mm square taper BB - no problems.
i've been using 2x9 for ages - since my Ritchey setup died, currently using race face turbines 94bcd, boone ti rings 29/42 - 44 shown in the pic, but the 29/44 was too big a jump.
biggest issue is chainline, with a 113mm square taper BB the chainline was off and i'd consistently drop chains when downshifting the rings low in the cassette range, moving to 107mm cured that. am currently using these cranks and rings on a 2006 RacerX with a Phil Wood 108mm square taper BB - no problems.
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kona kid - anything is possible. I currently run singlespeed and it suits me perfectly but I might consider going to a 1x9. I use a 39 front ring (19t out back as a SS) but a spread of 12-32 out back would give more than enough gears without the extreme high and low that are so little used anyway. Pic here of the SS, if you are going to use a road chainset just rmember there is only one make allowable! 
The Zaskar now runs a 2x8 set up, Middleburn Duo 29/44 at the front and an 11-28 at the back with a Dura Ace rear mech (Ti bolt upgraded).
I use a normal 8 speed STI shifter at the rear but a DX thumbshifter for the front, this allows me to trim the front mech to suit the chainline.
Whilst possibly not the aesthetes choice of shifters, the mix and match job works well. Running a thumby for the front also helps the mech to get over the larger range of a 29/44 as its easier to overshift and pull it back before you drop the chain.
I use a normal 8 speed STI shifter at the rear but a DX thumbshifter for the front, this allows me to trim the front mech to suit the chainline.
Whilst possibly not the aesthetes choice of shifters, the mix and match job works well. Running a thumby for the front also helps the mech to get over the larger range of a 29/44 as its easier to overshift and pull it back before you drop the chain.
sylvain
BoTM Winner
Last night I took to the hacksaw and converted my commuter from 1*8 to 1*9, using far less worn out cassette/chain/shifter and swapping the m900 rear mech for a newer one.
The shifting action is delightfully smooth ... hmmm new cables . A few weeks worth of road grit and it might not be so good ....
Cassette is a 12-27 Dura Ace, shifter m950 XTR, chain SRAM and ring old skool Real 8-speed 46t.
The chainline is an issue (especially when backpedalling, and cleaning the chain), ring clears the chainstay by about 8mm now, think I will go back to the old M900 cranks with which I could run the chainring in the middle ring position, and have absolut minimal chainstay clearance.
The shifting action is delightfully smooth ... hmmm new cables
. A few weeks worth of road grit and it might not be so good ....Cassette is a 12-27 Dura Ace, shifter m950 XTR, chain SRAM and ring old skool Real 8-speed 46t.
The chainline is an issue (especially when backpedalling, and cleaning the chain), ring clears the chainstay by about 8mm now, think I will go back to the old M900 cranks with which I could run the chainring in the middle ring position, and have absolut minimal chainstay clearance.
Isaac_AG":hnatl408 said:Could you be so kind as to explain the benefit of the 2X9 set up or even a 2X8.
Many thanks
Alison
Yeah, as Paul says, weight is a big reason to do it. You can lose a quarter of a pound off your bike by switching to a Middleburn Duo or the like.
Good for the legs aswell, the higher 'lowest' gear will force a great work out on you when you're climbing but its not as punishing as a singlespeed and you have the gears for a bit of speed on the downhill bits.
