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Remove fsa gossamer crankset

Old 04-14-21, 12:37 PM
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Octavianandrei
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Remove fsa gossamer crankset

Hello everybody!

I have a bicycle Orbea Orca M40 with FSA Gossamer Pro crankset . Please tell me, what tools do I need to remove the hub and clean it? My local store couldn't help me I'm not allowed to attach a picture yet, but it says so. M18 - ML533 - 38,41 Nm. Tighten M30*1.0. There are also 6 holes on the surface. On the frame it says so. BBSHELL 86.5X41

Wind from behind!
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Old 04-14-21, 01:37 PM
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Hi Octavianandrei,

Can I ask why you want to remove your crank and bottom bracket to clean it? Also, where are you located that your local store cannot help you? This should be very straight forward.

Also, the correct terminology is crankset and bottom bracket, hub is the part that is in the center of a wheel. There is a saying "Don't try to fix a working part". Is your current bottom bracket in need of replacement or deep cleaning?

You only need a large metric 6 sided allen key to remove your crank, just turn it counter-clockwise (to the left) and the non-drive side crank arm will come off of the spindle. The ring with the 6 holes is the self extractor, you don't need to remove that, but if you are interested, those are installed and removed with a pin spanner. As you loosen the bolt, it pushes up against that self extractor ring and will push the crank arm off the spindle.

The type of bottom bracket that you have is BB86, it is a press fit bottom bracket, there are very specific tools required to remove and install them. I do not recommend removing them for cleaning, unless you are going to be installing new bearings afterwards. Removing sealed cartridge bearings puts a lot of pressure on the inner bearing races and is considered destructive removal. You only do it if you have replacement bearings to for the reassembly.

Peace and bike grease.
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Old 04-14-21, 03:09 PM
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Thanks for all these details!When I pedal, it squeaks. That's why I thought I'd take it out. clean and grease it. This is a current problem, but in the next period, I have to mount another one crankset. I have 172.5mm and I need 170mm . I try to remove only the crank first.
When I change crankset, will I have to go to bearings and the ring with 6 holes?

Thank you for all tips!
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Old 04-14-21, 11:32 PM
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Originally Posted by Octavianandrei View Post
Thanks for all these details!When I pedal, it squeaks. That's why I thought I'd take it out. clean and grease it. This is a current problem, but in the next period, I have to mount another one crankset. I have 172.5mm and I need 170mm . I try to remove only the crank first.
When I change crankset, will I have to go to bearings and the ring with 6 holes?

Thank you for all tips!
I would still like to know where you are located and why your local shop cannot help you.

Before you do anything to the cranks and bottom bracket, there are a lot of reasons why there can be noise or squeaking when pedaling. I would try to figure that out first before you start doing very dramatic changes. Creaking noises when pedaling could be; loose chain ring bolts, very worn chain, chain that is too dry and under lubricated. It could also be loose pedal bearings or a worn out bottom bracket. Even a dry seatpost interface can make noise.

If you are changing the cranks from 172.5mm to 170mm, as long as the bottom bracket bearings are still okay, you just install the replacement cranks and tighten everything back up. No need to touch the self extractor (6 hole ring), just leave the original in place and your replacement cranks will have their own.

From what you are describing, it sounds like you don't have a lot of experience with this, I would really recommend having a shop do the installation for you. Or, for you to do as much reading and research before you tackle this.
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Old 04-15-21, 02:00 AM
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Originally Posted by *Scuba View Post
I would still like to know where you are located and why your local shop cannot help you.

Before you do anything to the cranks and bottom bracket, there are a lot of reasons why there can be noise or squeaking when pedaling. I would try to figure that out first before you start doing very dramatic changes. Creaking noises when pedaling could be; loose chain ring bolts, very worn chain, chain that is too dry and under lubricated. It could also be loose pedal bearings or a worn out bottom bracket. Even a dry seatpost interface can make noise.

If you are changing the cranks from 172.5mm to 170mm, as long as the bottom bracket bearings are still okay, you just install the replacement cranks and tighten everything back up. No need to touch the self extractor (6 hole ring), just leave the original in place and your replacement cranks will have their own.

From what you are describing, it sounds like you don't have a lot of experience with this, I would really recommend having a shop do the installation for you. Or, for you to do as much reading and research before you tackle this.
I live īn Romānia, Bucharest. Today I was īn another neighborhood and I solved the problem there. After the mechanic took care of it, I did it too to get usef to it . He confirmed the same thing to me. That for the moment it is enough. Without greasing bearings and cleaning. On his advice, I also bought my 6-corner tool for crank.

No, I have no experience. I've only had a bike for 1 year. I really like

Sorry for my english!

Thanks again for all the good advice!
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Old 04-15-21, 05:30 AM
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No problem and your English is perfectly fine. Glad that you got it taken care of.
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Old 04-15-21, 07:09 AM
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Originally Posted by Octavianandrei View Post
Sorry for my english!
Yes, your English is better and more clear than many of the native speakers we get on this forum.

I just replaced a FSA press-fit bottom bracket with some professional shop tools, but not quite the right tools. I think very experienced home mechanic could handle it with little risk to the frame.
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Old 04-15-21, 11:47 AM
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Thank you, Andrew! I learn slowly, easily, to fix everything I need on my own. I haven't changed the tire yet I'm afraid of the first rubber feather

Ride safe!
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