Shimano Hollowtech - Page 2 - SV650.org

maviczap · 03-08-23, 12:39 PM

TBH I've had similar problems with road cranksets, the tensioning bolt thingy are different diameters and lengths. Unfortunately all my cranksets are road cranksets, so no use to you, but I'll see if I've got any tensioner thingys which are 22mm. I have a feeling that XT and Dura Ace share similar dimensions. St Johns Street cycles would be my first port of call for the tension thingy.

Bibio · 03-08-23, 12:44 PM

thanks mav. the hunt continues lol

maviczap · 03-08-23, 04:35 PM

Quote:

Originally Posted by Bibio

ok i just looked at the top of the crank arm and it says ermm hollowtech II... wonder why the nuts dont fit. think i'll pull the arm off again at the weekend.....

On the back of the crank arm should be the model or part number, so you can use that to ascertain the model crank you have

Then you can search for a suitable crank arm fixing bolt as its called

maviczap · 03-08-23, 04:46 PM

Quote:

Originally Posted by Bibio

hi mav. the crankset looks identical to the hollowtech II XT but its the earlier one without the locking hole on the main shaft at the single arm side. the main adjustment nut is about 22mm instead of the 20mm of the II.

i would guess that the II would slide straight into the bearing set though.

thanks

The crank arm should butt up to the bottom bracket bearing without using the crank arm fixing bolt, it should just slide on to the splines on the spindle.

The crank arm fixing bolt is plastic and just puts tension onto the bearings, then do up the pinch bolts

Sorry if thats stating the obvious

redtrummy · 04-08-23, 10:48 PM

Pleased Mav can help you Bib, to be honest I am totally lost, and on a personal note as a choice I would not touch Hollowtech with a barge pole (I did read that the crank arms themselves can de-laminate. Not all from the Land of the Rising Sun is good )
St Johns bike shop is a good one, I agree with that - good luck

Bibio · 07-08-23, 09:52 AM

update. its hollowtech II Mk1. the main nut for the II fits but the difference is that the mk1 does not have the hole for the updated crank arm washer/locking pin. quest is over lol. thanks for all your help.

maviczap · 08-08-23, 08:57 AM

Cool

Bibio · 13-08-23, 11:00 PM

i got an alloy bolt and its all done and working great. the lad is well chuffed as he now has his bike back just in time for starting school again.

Bibio · 13-08-23, 11:01 PM

i got an alloy bolt and its all done and working great. the lad is well chuffed as he now has his bike back just in time for starting school again.

redtrummy · 09-10-23, 05:03 PM

Don't know if this applies to your bike Bibio https://www.bicycling.com/news/a4524...oad-cranksets/

03-08-23, 12:39 PM	#11
maviczap Member Mega Poster Join Date: Mar 2007 Posts: 9,097	Re: Shimano Hollowtech TBH I've had similar problems with road cranksets, the tensioning bolt thingy are different diameters and lengths. Unfortunately all my cranksets are road cranksets, so no use to you, but I'll see if I've got any tensioner thingys which are 22mm. I have a feeling that XT and Dura Ace share similar dimensions. St Johns Street cycles would be my first port of call for the tension thingy. __________________ We're riding out tonight to case the promised land Make everyday count RIP Reeder - Jolly Green Giant and comedy genius

03-08-23, 12:44 PM	#12
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,552	Re: Shimano Hollowtech thanks mav. the hunt continues lol

04-08-23, 10:48 PM	#15
redtrummy Member Join Date: Jan 2019 Location: N W Leicestershire Posts: 262	Re: Shimano Hollowtech Pleased Mav can help you Bib, to be honest I am totally lost, and on a personal note as a choice I would not touch Hollowtech with a barge pole (I did read that the crank arms themselves can de-laminate. Not all from the Land of the Rising Sun is good ) St Johns bike shop is a good one, I agree with that - good luck

07-08-23, 09:52 AM	#16
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,552	Re: Shimano Hollowtech update. its hollowtech II Mk1. the main nut for the II fits but the difference is that the mk1 does not have the hole for the updated crank arm washer/locking pin. quest is over lol. thanks for all your help.

08-08-23, 08:57 AM	#17
maviczap Member Mega Poster Join Date: Mar 2007 Posts: 9,097	Re: Shimano Hollowtech Cool __________________ We're riding out tonight to case the promised land Make everyday count RIP Reeder - Jolly Green Giant and comedy genius

13-08-23, 11:00 PM	#18
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,552	Re: Shimano Hollowtech i got an alloy bolt and its all done and working great. the lad is well chuffed as he now has his bike back just in time for starting school again.

13-08-23, 11:01 PM	#19
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,552	Re: Shimano Hollowtech i got an alloy bolt and its all done and working great. the lad is well chuffed as he now has his bike back just in time for starting school again.

09-10-23, 05:03 PM	#20
redtrummy Member Join Date: Jan 2019 Location: N W Leicestershire Posts: 262	Re: Shimano Hollowtech Don't know if this applies to your bike Bibio https://www.bicycling.com/news/a4524...oad-cranksets/

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Old shimano altus front deraillier question...	northwind	Idle Banter	8	15-05-08 07:34 PM