Giant XTC29er BB install and crankset issues.
weeksy59
Posts: 2,606
You may recall i had some issues with my crankarm being fubar'd on the splines. Looking today after i installed the new crankset i wasn't entirely happy with the length of crank and the ammount of thread the small retaining plastic screw goes in.
The bike is a Giant XTC29er 2011 and has a 73mm shell. Now this makes me think i should have 1 2.5mm spacer on the drive side and none on the non-drive. However that means that the crank arm doesn't really come through very far.
So, pic 1 and 2 show the cranks with the BB installed with no spacers. Pic 3 shows the spacer installed, 4 and 5 show the cranks installed with the 2.5mm spacer.
Now, reading the Shimano stuff there is an instance were no spacers are required which is when on a 73mm with a brack type front derailleur. Now, do i have one of them? i dunno... It's just a stnadard front mech...
When i try and do up the retaining jobbie with 1 spacer installed, it's only catching 2 threads.... which doesn't seem right to me.
Let me know your thoughts please
The bike is a Giant XTC29er 2011 and has a 73mm shell. Now this makes me think i should have 1 2.5mm spacer on the drive side and none on the non-drive. However that means that the crank arm doesn't really come through very far.
So, pic 1 and 2 show the cranks with the BB installed with no spacers. Pic 3 shows the spacer installed, 4 and 5 show the cranks installed with the 2.5mm spacer.
Now, reading the Shimano stuff there is an instance were no spacers are required which is when on a 73mm with a brack type front derailleur. Now, do i have one of them? i dunno... It's just a stnadard front mech...
When i try and do up the retaining jobbie with 1 spacer installed, it's only catching 2 threads.... which doesn't seem right to me.
Let me know your thoughts please
Salsa Spearfish 29er
http://superdukeforum.forumatic.com/index.php
http://superdukeforum.forumatic.com/index.php
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Comments
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And the problem was?A much loved, Giant Trance X3 20100
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Salsa Spearfish 29er
http://superdukeforum.forumatic.com/index.php0 -
73mm requires one 2.5mm spacer driveside for Shimano HT2. What is that Bottom Bracket though?0
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What cups are they?"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
Dunno lads, i bought them from a buyer after browsing ebay for ceramic BB;s about Xmas time. Fitted them then and used for 3 months.Salsa Spearfish 29er
http://superdukeforum.forumatic.com/index.php0 -
That's your problem! Wrong BB for the crank. It is too wide.0
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supersonic wrote:That's your problem! Wrong BB for the crank. It is too wide.
I know... hence why i said it was fixed hours ago
I fitted a standard Shimano BB i have here and we're all packed away.Salsa Spearfish 29er
http://superdukeforum.forumatic.com/index.php0 -
You said BB shells - you meant cup, the shell is what the cups thread into! You can get oversized shells, hence the confusion.0
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Oh.supersonic wrote:You said BB shells - you meant cup, the shell is what the cups thread into! You can get oversized shells, hence the confusion.Salsa Spearfish 29er
http://superdukeforum.forumatic.com/index.php0
