Buying a new drivetrain - (ask me about being gay for SRAM & Race Face)

NEstinkyrider · Oct 17, 2007

stick with the medium cage derailuer.. also check price point, they've had some killer deals on 07 and 06 sram stuff.

also, are you sure it's not your cranks/bb interface that is creaking? that sounds more likely to me.

drkenan · Oct 17, 2007

One of the pivots on my VP-Free is creaking like crazy - I thought it was the pedals and the BB so I replaced both but to no avail (fortunately I needed new ones anyway). Just thought I'd give you that heads up.

NEstinkyrider · Oct 17, 2007

yeah, if your shifting is all f'ed up then a new drivetrain might be inorder. did you check to make sure the derailuer hanger isn't bent? did you replace the derailuer cables?

those are the cheap things i'd look into first.

as far as the bb.. you might get lucky and find that it's just the bb that was smoked.. i thought the same thing on my bike this year, but turned out the crank arms were smoked.. the arms themselves looked fine, but it was the isis interface that got worn out..

starting with the bb might be a good idea but then again, if you gotta do bb and arms, you're probably better off getting an integrated unit with external bb bearings.. i wish i had done that.

check and see how easily your current cranks come off when you take out the crank arm bolt.. if it falls right off and slides back on all the way super smooth then chances are it's smoked.. it should be a pretty snug fit between the arms and the bb.

Urinal Mint · Oct 17, 2007

I recommend spending a few extra bones for X9 shifter/derailleur. Other than that, it looks like a solid drivetrain upgrade.

TWeerts · Oct 17, 2007

i recomend the x-9 rear mech and shifter, too. they do cost more, but they should last you through a couple seasons. my pair has lasted 3 seasons now, and is still going strong.

get a medium cage if you have 2 chainrings, and a long one if you have 3 chainrings. and of course, a short cage if you have 1 chainring up front.

El Gordo · Oct 17, 2007

I went with the the XT Shadow RD med cage with, with all 08 XT cassette, shifters, etc. On my 07 Preston and it has been great so far for cranks I went with the Holzfellers OCT 170mm with the Howitzer Team BB its a real nice setup.. You list looks good, I would go with a diff BB.. As for a LBS should be like $50 to install that stuff.

TWeerts · Oct 17, 2007

yes, dont do it. but no, they still make money.

drkenan · Oct 17, 2007

Del said:
Do most bike shops get frown upon bringing in a whole bunch of stuff for an install that you didn't buy from them?

If I can't figure it out I normally do a half-ass job, rub some dirt on there and go in with a "broken bike." :busted:

El Gordo · Oct 18, 2007

Listen LBS make money on service and labor, they dont care where you get the parts from, and if they do dont give them your business go somewhere else thats all..

DirtyMike · Oct 18, 2007

Del said:
My bike is a creaking mess when I pedal and the gears slip up a lot so I've decided to invest in a new drivetrain. My current setup is from a 2004 P.3 so I'm ready for something fresh. I want to stay on a decent budget but I don't want crappy stuff either.

And I've never shopped for the components of a drivetrain so I want to make sure everything I have picked out here is compatible.

My crank arms are Truvativ Holzfeller and I would like to keep those, as nothing is wrong with them.

All of this will be going a 2006 Transition Preston FR.

Currently on Bike:

Front Derailleur: Shimano M-570 LX, top pull
Rear Derailleur: Shimano M-750 XT, short cage
Shift Levers: Shimano M-510 Deore
Cassette: Shimano HG-50 LX, 9-speed, 11x34t
Chain: Unknown type
Cranks: Truvativ Holzfeller 7050 ISIS spline, 170mm
Chainrings: Rockguard outer ring, 32Sx22S, 4 bolt 104/64mm compact
Bottom Bracket: Truvativ ISIS GigaPipe DH, 73mm shell width, 118mm spindle length, E-Type
Rear Hub: (for cassette reference - not changing hub) Shimano M-525

What I Want:

Front Derailleur: Sram X.7 (but which one from that drop down list?
Rear Derailleur: Sram X.7 (medium or long cage?)
Shift Levers: Sram X.7 Levers
Cassette: Sram PG-950 9 Speed 11x34t
Chain: Sram PC-951
Chainrings: Race Face Rings 4-Bolt 32Sx22S 104/64mm
Bottom Bracket: Race Face Evolve FR BB 68/73mm M12 Bolt

Aside from the shifting cables, I think that's it. The total cost as figured by JensonUSA.com is $273.90

Does everything on that list look okay?

Also, I have nowhere near the mechanical aptitude required to install all of this so I'll most likely just get a local shop to order everything and install it, as long as they can offer somewhat comparable pricing.

Looks good, you can stick with the shimano front derailer though, you dont need to swap that one, I like my x7 stuff, and yes Shimano front derailers are compatible with sram front shifters, Its the rears that are different. Try stopping at your LBS, see what they can offer for a price match, labor wont be super cheap, Take intoi account your shipping and handleing costs with there pricing, also take into account warranty. Your going to get a better warranty from a shop than from Mail order by far, and if your from my area and want to Mail order, Contact me, Ill hook up a side job off hours.

DirtyMike · Oct 18, 2007

Del said:
Do most bike shops get frown upon bringing in a whole bunch of stuff for an install that you didn't buy from them?

Yes, we "Frown" on that, Labor isnt where the bigger money is, but yes we still install customers parts, Its normally a big pain in the A$$. nine times of ten, parts arent right, something is missing ETC. No we dont increase our labor when you bring your own parts, but we DO make sure you know we will NOT help with warranty on parts, just the install itself

mandown · Oct 18, 2007

pricepoint has a combo of 2007 x.7 shifters and a long cage (wish it were medium) for $89.

blueskycycling.com has the combo in a 2008 version for $99.

both places should have cheap deals on front derailleurs (x.7). unless your front is deraileur is beat to death, you can run the x.7 shifter with it.

buy some fresh cable and housing and do the work yourself. it is easy. if you aren't sure how to do it, get this.
Zinn and the Art of Mtb Maint.

rigidhack · Oct 18, 2007

I have not seen too many FD's that are so messed up they need to be replaced. I currently run an XT FD and X9 RD with no problems at all. The X9 stuff is great. When was the last time you adjusted the deraileurs? I bent my hangar and was skipping gears all the time. Until a replacement arrives, I just readjusted the RD to compensate for the bend. Works OK so far.

Huck Banzai · Oct 18, 2007

Urinal Mint said:
I recommend spending a few extra bones for X9 shifter/derailleur. Other than that, it looks like a solid drivetrain upgrade.

If you're gonna 'fall for the SRAM hype' - definitely go with X9.

mandown · Oct 18, 2007

yeah, spend a bunch of extra cash to save a few grams on parts that will work the same and deraileurs that will get smashed :rolleyes:

micahb · Oct 19, 2007

TWeerts said:
i recomend the x-9 rear mech and shifter, too. they do cost more, but they should last you through a couple seasons. my pair has lasted 3 seasons now, and is still going strong.

read on a thread that current x-7's are a couple year old version of the x-9. if they last 3 years, why not just buy x-7's?

NEstinkyrider · Oct 19, 2007

"sram hype" i don't know man.. i've ridden shimano my whole life and the sram 1:1 shifter/derailuer feels WAY more crispy then what i got..

Huck Banzai · Oct 20, 2007

NEstinkyrider said:
"sram hype" i don't know man.. i've ridden shimano my whole life and the sram 1:1 shifter/derailuer feels WAY more crispy then what i got..

your crispy = my clunky.

Ive ridden Shimano, Campagnolo, Suntour, Sachs->Sachs/Huret->SRAM -- Shimano has stayed with or at the top all along.

Ive got SRAM, and they shift fine. They dont shift better or faster than my shimano, which dont clunk (aka 'positive shifting'). My shimaos DO need more attention (1nce a month or so, whoooptee) Clanking derailleurs in the past made me try something new.

As with 99% of our equipment, its all good, some is great, to each their own - but with the Shadow successfully eliminating the clunk, its back to Shimano for me! Im told the new shifters are sweet too, but I still favor that with SRAM (I have Attack triggers on my S derailleurs) until I get some airtime.

NEstinkyrider · Oct 20, 2007

never tried the new shadow.. i'd like to check it out...

Transfer · Oct 22, 2007

Hey, be careful trying to eliminate the creaks. You may be unpleasantly surprised. I replaced my BB to find out mine is perfect and the creak was in a pivot.

I do understand your need for a new drivetrain though.

If you're feeling guilty about the buy/install options, you may want to call Performance (Springfield) as I have been told by a guy that works there that they price match all online retailers. Never checked it out though.

Also, I second the guy who said X7 is pretty much the same as X9, but both work and sometimes the price difference is pretty small. I broke two X9 rear derailleurs in a row before I wised up and bought X7. If you're interested, also check out Blackspire Super Pro rings and Chuck ring granny gear.

Huck Banzai · Oct 22, 2007

Transfer said:
Hey, be careful trying to eliminate the creaks. You may be unpleasantly surprised. I replaced my BB to find out mine is perfect and the creak was in a pivot.

I do understand your need for a new drive train though. If you're feeling guilty about the buy/install options, you may want to call Performance (Springfield) as I have been told by a guy that works there that they price match all online retailers. Never checked it out though.

Also, I second the guy who said X7 is pretty much the same as X9, but both work and sometimes the price difference is pretty small. I broke two X9 rear derailleurs in a row before I wised up and bought X7. If you're interested, also check out Blackspire Super Pro rings and Chuck ring granny gear.

Ill have to rescind my X9 comment to an extent - get the shifters (esp the newer ones) or better yet, get the X0 shifter -- fantastic -- really the ****! Use an X7 or X9 mech with it -- I cant stomach trashing a 230$ X0 dérailleur (although I have only ever wrecked one in 12 years of 'serious' riding)

Just a random personal observation but I have seen ALOT of X7's swing into the spokes; I am not sure if its coincidence, but in the past 2 years I can recall 4 incidents where a dérailleur went into the spokes and got wrecked as well as wrecked spokes/wheels -- 3 were X.7's the last was my 96 XTR (which I rebuilt later that day and still use!). A

Buying a new drivetrain - (ask me about being gay for SRAM & Race Face)

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