Need help: Which Praxis Works Conv BB for S-works Sl4 to UT

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poppiholla
Posts: 597
Joined: Wed Aug 03, 2011 1:18 pm

by poppiholla

I ride a Specialized S-works sl4 Tarmac. It has a BB30 bottom bracket. See the picture.
Which Praxis Works ConV BB do I need to use my frame with the Campagnolo Ultra Torque crankset (2015 model).

I bought the BB/PF30 ConvBB Campy ULT 68mm Road but I am not sure if it is the correct unit when I look at the pictures and the Praxis works video on you tube. Can you help me out?

Thanks in advance!

Image
Specialized Tarmac S-works SL7 (Satin carbon spectraflair tint)
Specialized Tarmac S-works SL6 (Green Cameleon)
Specialized Tarmac Pro SL6 Disc (Blue/Teal Sram Force AXS)
Specialized Epic Elite 29
Greetings from the Netherlands

hornedfrog
Posts: 235
Joined: Tue Feb 28, 2012 9:13 pm

by hornedfrog

SKU: 68-3102 is what you need.

http://www.praxiscycles.com/product/conv-bb-campagnolo/

On the pull down tab there is an option for Specialized OSBB.

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
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poppiholla
Posts: 597
Joined: Wed Aug 03, 2011 1:18 pm

by poppiholla

So you think I need the OSBB version? What is different between the OSBB and the BB30 version. My frame is BB30.
Specialized Tarmac S-works SL7 (Satin carbon spectraflair tint)
Specialized Tarmac S-works SL6 (Green Cameleon)
Specialized Tarmac Pro SL6 Disc (Blue/Teal Sram Force AXS)
Specialized Epic Elite 29
Greetings from the Netherlands

goodboyr
Posts: 1488
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

I think you need to get those inserts out first.

poppiholla
Posts: 597
Joined: Wed Aug 03, 2011 1:18 pm

by poppiholla

Are those inserts glued in? I am not sure but my frame came with these inserts pre installed.
Specialized Tarmac S-works SL7 (Satin carbon spectraflair tint)
Specialized Tarmac S-works SL6 (Green Cameleon)
Specialized Tarmac Pro SL6 Disc (Blue/Teal Sram Force AXS)
Specialized Epic Elite 29
Greetings from the Netherlands

goodboyr
Posts: 1488
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

The praxis expects a smooth bore. They just bang out with the right tool.

poppiholla
Posts: 597
Joined: Wed Aug 03, 2011 1:18 pm

by poppiholla

So if I understand you right, I need to remove the inserts on the picture and replace them with the Delrin cups that are delivered with the OSBB version praxis Works (http://www.praxiscycles.com/product/conv-bb-campagnolo/).
Specialized Tarmac S-works SL7 (Satin carbon spectraflair tint)
Specialized Tarmac S-works SL6 (Green Cameleon)
Specialized Tarmac Pro SL6 Disc (Blue/Teal Sram Force AXS)
Specialized Epic Elite 29
Greetings from the Netherlands

goodboyr
Posts: 1488
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

Yup

poppiholla
Posts: 597
Joined: Wed Aug 03, 2011 1:18 pm

by poppiholla

Are those Delrin cups glued in or are they fixated when the Convv BB is pressed in. I don't want friction and noises from the bottom bracket when cycling (my worst nightmare ;-)
Specialized Tarmac S-works SL7 (Satin carbon spectraflair tint)
Specialized Tarmac S-works SL6 (Green Cameleon)
Specialized Tarmac Pro SL6 Disc (Blue/Teal Sram Force AXS)
Specialized Epic Elite 29
Greetings from the Netherlands

goodboyr
Posts: 1488
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

You won't have that with praxis. Just follow the instructions on the praxis site and you will be fine. They are initially pressed in, but I believe the nature of the praxis is that the collet system expands and holds them.

poppiholla
Posts: 597
Joined: Wed Aug 03, 2011 1:18 pm

by poppiholla

Ok thanks. Final question. The delrin cups on the picture are pressed in by Specialized. I am not sure but I believe the frame came in with theses Delrin cups pressed in. Can I remove them savely or are they glued in the bottom bracket. I assume I need a Partool bracket removal tool and a soft hammer to do it?
Specialized Tarmac S-works SL7 (Satin carbon spectraflair tint)
Specialized Tarmac S-works SL6 (Green Cameleon)
Specialized Tarmac Pro SL6 Disc (Blue/Teal Sram Force AXS)
Specialized Epic Elite 29
Greetings from the Netherlands

goodboyr
Posts: 1488
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

Yup. The park tool and a mallet will get them out. No worries.

dunbar42
Posts: 191
Joined: Tue Jan 07, 2014 9:20 am

by dunbar42

You need the carbon OSBB version. Although as long as you order the Specialized version you will be fine (the OSBB version comes with the correct sleeve.)

Butcher
Shop Owner
Posts: 1926
Joined: Sun Jan 03, 2010 4:58 am

by Butcher

I agree with everyone here, but just to prevent any issues, I would call Praxis to confirm.

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



User avatar
itsacarr
Posts: 1012
Joined: Fri Nov 14, 2008 4:55 am

by itsacarr

I run a praxis conversion on my s-works - need to pop that sleeve out. Works great, haven't found a better solution yet.
Just ride ..

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