How to install press fit bottom bracket into new frame Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?New frame bottom bracket and crank compatibility and general stupidity!How do I tell if I've correctly installed a press fit bottom bracket?FSA Omega MegaEXO Press fit BB 19mm removal (non standard BB86)Bottom bracket bearings grinding only when installed into frameHow to fit BB bearings to install Ultegra Crank on road bike Wilier Cento 1Should I use anti seize for headsets and press fit bottom brackets in a titanium frame?Bottom bracket creakPress fit bottom bracket causing bearings to bindWhat tool do I need to press fit a “Spanish” bottom bracket?Is it possible to convert a press fit bottom bracket to threaded?
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How to install press fit bottom bracket into new frame
Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)
Announcing the arrival of Valued Associate #679: Cesar Manara
Unicorn Meta Zoo #1: Why another podcast?New frame bottom bracket and crank compatibility and general stupidity!How do I tell if I've correctly installed a press fit bottom bracket?FSA Omega MegaEXO Press fit BB 19mm removal (non standard BB86)Bottom bracket bearings grinding only when installed into frameHow to fit BB bearings to install Ultegra Crank on road bike Wilier Cento 1Should I use anti seize for headsets and press fit bottom brackets in a titanium frame?Bottom bracket creakPress fit bottom bracket causing bearings to bindWhat tool do I need to press fit a “Spanish” bottom bracket?Is it possible to convert a press fit bottom bracket to threaded?
I bought a new carbon frame, which came with a press fit bottom bracket. All of the resources I can find for the installation of these includes information about how to remove the old bottom bracket, but I don't need to do that.
What steps do I need to take, and which tools will I need, to install a press fit bottom bracket in a new frame?
bottom-bracket press-fit
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
add a comment |
I bought a new carbon frame, which came with a press fit bottom bracket. All of the resources I can find for the installation of these includes information about how to remove the old bottom bracket, but I don't need to do that.
What steps do I need to take, and which tools will I need, to install a press fit bottom bracket in a new frame?
bottom-bracket press-fit
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
There is plenty of information on this subject either on Parktools site or on YouTube.
– Carel
7 hours ago
add a comment |
I bought a new carbon frame, which came with a press fit bottom bracket. All of the resources I can find for the installation of these includes information about how to remove the old bottom bracket, but I don't need to do that.
What steps do I need to take, and which tools will I need, to install a press fit bottom bracket in a new frame?
bottom-bracket press-fit
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
I bought a new carbon frame, which came with a press fit bottom bracket. All of the resources I can find for the installation of these includes information about how to remove the old bottom bracket, but I don't need to do that.
What steps do I need to take, and which tools will I need, to install a press fit bottom bracket in a new frame?
bottom-bracket press-fit
bottom-bracket press-fit
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
asked 8 hours ago
Darth EgregiousDarth Egregious
5,78594264
5,78594264
There is plenty of information on this subject either on Parktools site or on YouTube.
– Carel
7 hours ago
add a comment |
There is plenty of information on this subject either on Parktools site or on YouTube.
– Carel
7 hours ago
There is plenty of information on this subject either on Parktools site or on YouTube.
– Carel
7 hours ago
There is plenty of information on this subject either on Parktools site or on YouTube.
– Carel
7 hours ago
add a comment |
2 Answers
2
active
oldest
votes
Ideally you do it with a press type tool, one cup at a time, with stepped bushings that mate snugly with the cups and the BB shell. For the first cup, one of the bushings is interfaced with the frame to act as a pilot so that the cup stays square and goes in straight, and then for the second cup the other bushing is doing the same while contacting the first cup. This is how the commercial tools tend to work. Making the same thing out of threaded rod and turned or printed bushings is an option if you want a proper tool but don't want to buy one.
Pressfit bottom brackets usually (always?) have a sleeve that bridges the two cups and fits snugly inside a little lip on one or both of them. This makes them more sensitive to going in square during the actual pressing than some other similar pressed-in bike parts. If the second cup gets off-center by much, the sleeve won't mate with it properly as it goes in and can get ruined. For this reason, using traditional home methods for installing pressed parts (blocks of wood and a hammer, vise, threaded rod and washers, etc) can be a little hazardous in the case of pressfit BBs. That's not to say it can't be done.
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
add a comment |
I would also add to Nathan’s answer that with it being a carbon frame, if you take it to your local bike shop and they suggest facing the bottom bracket, they may be heading towards messing your frame up. You don’t want to face a carbon shell if it is carbon. It’s probably got a alloy liner so you may be alright.
If there’s no paint on the edge, it needs facing. If not, don’t do it.
Also worth adding some BB press fit lock (thread lock basically) to stop any movement and chance of creaking.
I personally managed to fit mine with some threaded bar and 2 large washers. Went in really easy but I did give it a once-over with a wooden mallet and a block of wood to make sure it was firmly in the shell. It’s easier than you think overall. GMBN even has a simple video on fitting pressfit bb’s.
answered 3 hours ago
ChrisChris
641312
Your second paragraph confuses me. "if there's no paint on the edge of the BB housing, then it should be faced." makes sense. "if not, don't do it" <-- that bit seems to disagree. Could you please clarify ?
– Criggie♦
2 hours ago
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Ideally you do it with a press type tool, one cup at a time, with stepped bushings that mate snugly with the cups and the BB shell. For the first cup, one of the bushings is interfaced with the frame to act as a pilot so that the cup stays square and goes in straight, and then for the second cup the other bushing is doing the same while contacting the first cup. This is how the commercial tools tend to work. Making the same thing out of threaded rod and turned or printed bushings is an option if you want a proper tool but don't want to buy one.
Pressfit bottom brackets usually (always?) have a sleeve that bridges the two cups and fits snugly inside a little lip on one or both of them. This makes them more sensitive to going in square during the actual pressing than some other similar pressed-in bike parts. If the second cup gets off-center by much, the sleeve won't mate with it properly as it goes in and can get ruined. For this reason, using traditional home methods for installing pressed parts (blocks of wood and a hammer, vise, threaded rod and washers, etc) can be a little hazardous in the case of pressfit BBs. That's not to say it can't be done.
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
add a comment |
Ideally you do it with a press type tool, one cup at a time, with stepped bushings that mate snugly with the cups and the BB shell. For the first cup, one of the bushings is interfaced with the frame to act as a pilot so that the cup stays square and goes in straight, and then for the second cup the other bushing is doing the same while contacting the first cup. This is how the commercial tools tend to work. Making the same thing out of threaded rod and turned or printed bushings is an option if you want a proper tool but don't want to buy one.
Pressfit bottom brackets usually (always?) have a sleeve that bridges the two cups and fits snugly inside a little lip on one or both of them. This makes them more sensitive to going in square during the actual pressing than some other similar pressed-in bike parts. If the second cup gets off-center by much, the sleeve won't mate with it properly as it goes in and can get ruined. For this reason, using traditional home methods for installing pressed parts (blocks of wood and a hammer, vise, threaded rod and washers, etc) can be a little hazardous in the case of pressfit BBs. That's not to say it can't be done.
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
add a comment |
Ideally you do it with a press type tool, one cup at a time, with stepped bushings that mate snugly with the cups and the BB shell. For the first cup, one of the bushings is interfaced with the frame to act as a pilot so that the cup stays square and goes in straight, and then for the second cup the other bushing is doing the same while contacting the first cup. This is how the commercial tools tend to work. Making the same thing out of threaded rod and turned or printed bushings is an option if you want a proper tool but don't want to buy one.
Pressfit bottom brackets usually (always?) have a sleeve that bridges the two cups and fits snugly inside a little lip on one or both of them. This makes them more sensitive to going in square during the actual pressing than some other similar pressed-in bike parts. If the second cup gets off-center by much, the sleeve won't mate with it properly as it goes in and can get ruined. For this reason, using traditional home methods for installing pressed parts (blocks of wood and a hammer, vise, threaded rod and washers, etc) can be a little hazardous in the case of pressfit BBs. That's not to say it can't be done.
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
Ideally you do it with a press type tool, one cup at a time, with stepped bushings that mate snugly with the cups and the BB shell. For the first cup, one of the bushings is interfaced with the frame to act as a pilot so that the cup stays square and goes in straight, and then for the second cup the other bushing is doing the same while contacting the first cup. This is how the commercial tools tend to work. Making the same thing out of threaded rod and turned or printed bushings is an option if you want a proper tool but don't want to buy one.
Pressfit bottom brackets usually (always?) have a sleeve that bridges the two cups and fits snugly inside a little lip on one or both of them. This makes them more sensitive to going in square during the actual pressing than some other similar pressed-in bike parts. If the second cup gets off-center by much, the sleeve won't mate with it properly as it goes in and can get ruined. For this reason, using traditional home methods for installing pressed parts (blocks of wood and a hammer, vise, threaded rod and washers, etc) can be a little hazardous in the case of pressfit BBs. That's not to say it can't be done.
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
edited 3 hours ago
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
answered 6 hours ago
Nathan KnutsonNathan Knutson
25.5k12063
25.5k12063
add a comment |
add a comment |
I would also add to Nathan’s answer that with it being a carbon frame, if you take it to your local bike shop and they suggest facing the bottom bracket, they may be heading towards messing your frame up. You don’t want to face a carbon shell if it is carbon. It’s probably got a alloy liner so you may be alright.
If there’s no paint on the edge, it needs facing. If not, don’t do it.
Also worth adding some BB press fit lock (thread lock basically) to stop any movement and chance of creaking.
I personally managed to fit mine with some threaded bar and 2 large washers. Went in really easy but I did give it a once-over with a wooden mallet and a block of wood to make sure it was firmly in the shell. It’s easier than you think overall. GMBN even has a simple video on fitting pressfit bb’s.
answered 3 hours ago
ChrisChris
641312
Your second paragraph confuses me. "if there's no paint on the edge of the BB housing, then it should be faced." makes sense. "if not, don't do it" <-- that bit seems to disagree. Could you please clarify ?
– Criggie♦
2 hours ago
add a comment |
I would also add to Nathan’s answer that with it being a carbon frame, if you take it to your local bike shop and they suggest facing the bottom bracket, they may be heading towards messing your frame up. You don’t want to face a carbon shell if it is carbon. It’s probably got a alloy liner so you may be alright.
If there’s no paint on the edge, it needs facing. If not, don’t do it.
Also worth adding some BB press fit lock (thread lock basically) to stop any movement and chance of creaking.
I personally managed to fit mine with some threaded bar and 2 large washers. Went in really easy but I did give it a once-over with a wooden mallet and a block of wood to make sure it was firmly in the shell. It’s easier than you think overall. GMBN even has a simple video on fitting pressfit bb’s.
answered 3 hours ago
ChrisChris
641312
Your second paragraph confuses me. "if there's no paint on the edge of the BB housing, then it should be faced." makes sense. "if not, don't do it" <-- that bit seems to disagree. Could you please clarify ?
– Criggie♦
2 hours ago
add a comment |
I would also add to Nathan’s answer that with it being a carbon frame, if you take it to your local bike shop and they suggest facing the bottom bracket, they may be heading towards messing your frame up. You don’t want to face a carbon shell if it is carbon. It’s probably got a alloy liner so you may be alright.
If there’s no paint on the edge, it needs facing. If not, don’t do it.
Also worth adding some BB press fit lock (thread lock basically) to stop any movement and chance of creaking.
I personally managed to fit mine with some threaded bar and 2 large washers. Went in really easy but I did give it a once-over with a wooden mallet and a block of wood to make sure it was firmly in the shell. It’s easier than you think overall. GMBN even has a simple video on fitting pressfit bb’s.
answered 3 hours ago
ChrisChris
641312
I would also add to Nathan’s answer that with it being a carbon frame, if you take it to your local bike shop and they suggest facing the bottom bracket, they may be heading towards messing your frame up. You don’t want to face a carbon shell if it is carbon. It’s probably got a alloy liner so you may be alright.
If there’s no paint on the edge, it needs facing. If not, don’t do it.
Also worth adding some BB press fit lock (thread lock basically) to stop any movement and chance of creaking.
I personally managed to fit mine with some threaded bar and 2 large washers. Went in really easy but I did give it a once-over with a wooden mallet and a block of wood to make sure it was firmly in the shell. It’s easier than you think overall. GMBN even has a simple video on fitting pressfit bb’s.
answered 3 hours ago
ChrisChris
641312
answered 3 hours ago
ChrisChris
641312
answered 3 hours ago
ChrisChris
641312
answered 3 hours ago
ChrisChris
641312
641312
Your second paragraph confuses me. "if there's no paint on the edge of the BB housing, then it should be faced." makes sense. "if not, don't do it" <-- that bit seems to disagree. Could you please clarify ?
– Criggie♦
2 hours ago
add a comment |
Your second paragraph confuses me. "if there's no paint on the edge of the BB housing, then it should be faced." makes sense. "if not, don't do it" <-- that bit seems to disagree. Could you please clarify ?
– Criggie♦
2 hours ago
Your second paragraph confuses me. "if there's no paint on the edge of the BB housing, then it should be faced." makes sense. "if not, don't do it" <-- that bit seems to disagree. Could you please clarify ?
– Criggie♦
2 hours ago
Your second paragraph confuses me. "if there's no paint on the edge of the BB housing, then it should be faced." makes sense. "if not, don't do it" <-- that bit seems to disagree. Could you please clarify ?
– Criggie♦
2 hours ago
add a comment |
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There is plenty of information on this subject either on Parktools site or on YouTube.
– Carel
7 hours ago