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-   -   Sram Bottom Bracket Help (https://www.bikeforums.net/road-cycling/648846-sram-bottom-bracket-help.html)

Steve90068 05-26-10 11:11 AM

Sram Bottom Bracket Help
 
I recently purchased the Ridley Compact frameset from Competitive Cyclist (hell of a deal!) and I am installing a Sram GXP bottom bracket on it.

The bottom bracket comes with 2 black spacers. The instructions are kind of vague but it looks like you use the spacers with an english bottom bracket shell (which the Ridley has)? Ive never had to use spacers on a bottom bracket before so I want to make sure it is correct to use them in the case.

Please let me know your advice.

thanks!

-Steve

Cdy291 05-26-10 11:13 AM

The instructions do no good here. I called Sram when I was doing it and they said only use them for a Mountain bike.

Steve90068 05-26-10 11:17 AM


Originally Posted by Cdy291 (Post 10868717)
The instructions do no good here. I called Sram when I was doing it and they said only use them for a Mountain bike.

Awesome, thanks for the help. The instructions are useless. I searched all over google, watched every sram video on youtube and still no mention.

No spacers it is!

ptle 05-26-10 11:27 AM

I thought the instructions were pretty clear.

Anyways I installed mine without spacers (68mm).

Psimet2001 05-26-10 11:30 AM


Originally Posted by ptle (Post 10868798)
I thought the instructions were pretty clear.

Anyways I installed mine without spacers (68mm).

+1

umd 05-26-10 11:46 AM


Originally Posted by ptle (Post 10868798)
I thought the instructions were pretty clear.

Anyways I installed mine without spacers (68mm).

IIRC there was a table in the instructions that said whether to use 0, 1, or 2 shims depending on the width of the BB. I don't remember the specific instructions, but I felt that they were very clear as well.

AngryScientist 05-26-10 11:49 AM

i am unfamiliar with sram, but the need to use spacers has to be dictated by BB width, period

MrClyde 05-26-10 11:54 AM

No spacers. Trust me I know. Went through this last week.

I have a 68mm bottom bracket, and if you follow the unclear instructions, it tells you to use the spacers for 68mm. Not true.

ultraman6970 05-26-10 12:03 PM


Originally Posted by Cdy291 (Post 10868717)
The instructions do no good here. I called Sram when I was doing it and they said only use them for a Mountain bike.

I was just going to say this. Do not lose the spacers becuase are usefull if you need to to tricks with the BBs...

Steve90068 05-26-10 01:06 PM


Originally Posted by MrClyde (Post 10868979)
No spacers. Trust me I know. Went through this last week.

I have a 68mm bottom bracket, and if you follow the unclear instructions, it tells you to use the spacers for 68mm. Not true.

Exactly. The instructions say for a 68mm BB use the spacers. That's why I was so confused.

Either way, I wont be using them and thanks everyone for the help

umd 05-26-10 01:11 PM


Originally Posted by Steve90068 (Post 10869497)
Exactly. The instructions say for a 68mm BB use the spacers. That's why I was so confused.

Either way, I wont be using them and thanks everyone for the help

These are the same instructions that came with mine. Are yours different?

http://www.sram.com/_media/techdocs/...xp-05-r5-e.pdf

Instructions clearly say no spacers according to the compatibility table AND the note in step 2: "Spacers - use ONLY with 68mm mtb configuration (see chart)"

Steve90068 05-26-10 01:47 PM


Originally Posted by umd (Post 10869532)
These are the same instructions that came with mine. Are yours different?

http://www.sram.com/_media/techdocs/...xp-05-r5-e.pdf

Instructions clearly say no spacers according to the compatibility table AND the note in step 2: "Spacers - use ONLY with 68mm mtb configuration (see chart)"

Yeah that actually is different. I can't find an online version of the instructions I got by they were from a 2010 GXP English BB box. I tossed them already, otherwise I would snap a quick pic.

JTGraphics 05-26-10 01:55 PM

No spacers on road bike BB

Tress94 05-26-10 02:58 PM


Originally Posted by Steve90068 (Post 10868701)
I recently purchased the Ridley Compact frameset from Competitive Cyclist (hell of a deal!) and I am installing a Sram GXP bottom bracket on it.

Let's see it once you get it built up...

umd 05-26-10 03:03 PM


Originally Posted by Steve90068 (Post 10869741)
Yeah that actually is different. I can't find an online version of the instructions I got by they were from a 2010 GXP English BB box. I tossed them already, otherwise I would snap a quick pic.

I would be interested to see the new instructions. The last GXP BB I bought was last year, and it still had the 2005 instructions.

Cdy291 05-26-10 04:04 PM

Who ever typed up the 2010 instructions must have had a bottle of Jack Daniels sitting beside them.

Steve90068 05-27-10 10:55 AM


Originally Posted by Tress94 (Post 10870171)
Let's see it once you get it built up...

Almost finished, at the last minute I decided I want to go with Yokozuna Reaction cables (group is 2010 Force). I'm just waiting for those and then the build will be finished, probably by this weekend :)

ikweetutnietmee 05-27-10 12:39 PM

another confused person here ...

I had the same problem when trying to install my Rival groupset. I always go through any instruction manual before installing just to make sure I am not missing anything. The manual (2009) that came with the groupset said: 2 spacers for a 68mm BB (which is BSA). Unfortunately the groupset did not contain any spacers whatsoever. I started to look for a new instruction manual on the sram site and found a revised version (2010). Suddenly the instruction manual only showed 1 spacer on the non-drive side only ?! :notamused:

I decided to check with the European Sram branch here in the Netherlands where I live. The not-so-friendly dude there first told me off since I was not supposed to call them directly as being a consumer. After I put on my "hey I am someone that bought your ******** product you *sshole"-voice, he checked with a colleague and was able to tell me the spacers were only supposed to be used on an MTB.
Since he was not too keen about him giving me any info at first, I wasn't sure if I hould believe him.

To make a (already) long story short.. I have decided for myself to use NO spacers on the 68mm BSA BB and see what happens. :(

bloomieracer 05-27-10 12:50 PM

I had to use the spacers with the Planet X Pro SL frame - 68mm on that one.

Cdy291 05-27-10 01:10 PM

I don't care what they say, if you have a road bike don't use the spacers.

bloomieracer 05-27-10 01:22 PM

I torqued mine up without spacers and there was play. I put the spacers in and all is good.

I agree that I don't know of anyone else that's had to use the spacers on a road bike.

Psimet2001 05-27-10 01:39 PM

http://www.psimet.com/images/BB.jpg

Pretty obvious to me.

Cdy291 05-27-10 03:38 PM

^ So that picture is in the manual huh? I don't remember seeing it. I looked the how thing over to see what these spaces were for and I only found some more jiberish that left me more confused.

My BB and crank came in separate boxes and it seems like the BB came with no manual, but the crank did, I don't remember for sure.

Steve90068 05-27-10 06:25 PM

Good to see that I'm not completely crazy. I went with no spacers and have yet to ride the bike (build is not finished) but something on the non drive side looks off to me

ikweetutnietmee 05-28-10 10:45 AM

Steve, one thing that all manuals whatever what version are saying is following:
Check the assembly for play by rocking the crank arms back and forth away from frame. If the crank moves, tighten crank arm bolt until no play is detected. If maximum torque of
54 N·m (478 in-lb) has been achieved, remove the crank arm from the spindle, apply additional grease and repeat installation procedures until play is eliminated.

Psimet2001 05-28-10 10:57 AM


Originally Posted by Cdy291 (Post 10876406)
^ So that picture is in the manual huh? I don't remember seeing it. I looked the how thing over to see what these spaces were for and I only found some more jiberish that left me more confused.

My BB and crank came in separate boxes and it seems like the BB came with no manual, but the crank did, I don't remember for sure.

It is in the instructions that come with the Truvativ BB. Remember - SRAM BB's are Truvativ branded. The only ones that are SRAM branded are the blackbox ceramic GXP and BB30.

Wiswell 06-12-10 08:02 PM


Originally Posted by Psimet2001 (Post 10875786)

Hey Psimet my crank that you installed has play (recently noticed when the chain was removed). What could be the reason? Should I try tightening the crank arm bolt first?


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