log in
register

*sigh* replacement BB30A chainsets for a Cannondale

  • Creator
    Topic
  • March 5, 2015 at 8:02 pm #23413
    IanEdward

    So… I have no reason to want to replace my stock FSA Gossamer, other than I saw some very tasty BB30 FSA K-Lights in the ChainReaction sale.

    Although I wasn’t seriously considering buying them, I did research whether I could fit them to my 5mm wider BB30A frame.

    As there don’t appear to be any spacers on an FSA BB30 crankset I figured no, as there would be nowhere for the extra 5mm of BB Shell to go.

    It got me wondering, how do you source a new chainset for a BB30A Cannondale? They must exist as I doubt top of the range Synapses come with FSA Gossamer cranks…

    Thanks

  • Creator
    Topic
Viewing 15 replies - 1 through 15 (of 18 total)
1 2
  • Author
    Replies
  • March 10, 2016 at 3:44 pm #834719
    0
    Gossa

    hedgey wrote:

    hedgey wrote:
    Hi Ian, I just bought a synapse DI2 disk and want to replace the 50/34 chain rings. Did you get anywhere with enough confidence to make a purchase regarding your queries on what to replace the crankset with ? thanks-A

     

    HI, if you have the one piece SpideRing, you can replace with other ratio SpideRings or you can fit a spider on the Si cranks to fit other chainrings. You don’t need to change your whole chainset. Hope this helps.

    March 10, 2016 at 3:02 pm #834717
    0
    Alessandro

    I* just used a Praxis

    I* just used a Praxis converter in my Cannondale BB30 and have fitted a Campagnolo Record chainset to it. Still in the process of finishing off the build (partly due to a broken elbow sustained the other week during my commute) but the cranks certainly seem to spin fine!

     

    https://www.westbrookcycles.co.uk/praxis-works-68mm-campagnolo-ultratorque-bb30-pf30-black-p278606

     

    * I should say that my LBS did this for me as my technical skills are negligible and fitting the converter probably would have resulted in my flat burning down. 

    March 10, 2016 at 2:20 pm #834715
    0
    Pinstruck

    For the benefit of anyone

    For the benefit of anyone searching for more info regarding BB30A compatible cranksets, Rotor’s 30mm spindle cranksets will fit.   

    I swapped the FSA Gossamer on my Synapse for a Rotor 3D+ crankset,  purely for asthetics – I know there’s no real gain 🙂

    Bought a 5.5mm spacer from Velotech to use on the non-drive side with the 1mm and wavey washer that came off the Gossamer.  Then one of the included 11mm spacers on the drive side.

     

    Interestingly, the Gossamer crankset I took off is clearly labelled as a BB30 Crankset and not BB386…

     

    August 29, 2015 at 8:39 am #834713
    0
    AJ101

    Various converters pass
    Various converters pass through here – saying that there only seems to be a single model available today – the FSA reducer.

    August 27, 2015 at 3:22 pm #834711
    0
    BobbyG

    5-O wrote:I wouldn’t change
    [quote=5-O]I wouldn’t change the cranks unless you need to, but if you ever do, then Wheels Manufacturing make an adapter that will allow Shimano and SRAM cranks to fit both BB30a and BB30: http://wheelsmfg.com/products/bottom-brackets/cannondale-bb30a/bb30a-adapters.html%5B/quote%5D

    I’ve just used these to convert my BB30 to a 24mm spindle & Shimano Ultegra chainset.

    Very easy to fit & no complaints so far B-)

    August 27, 2015 at 2:38 pm #834709
    0
    IanEdward

    Hi Hedgey,
    I received the
    Hi Hedgey,

    I received the following from Cycle Sports Group, who I believe are the UK Cannondale Distributors:

    “Currently we have only tested the FSA BB386 for 100% compatibility.”

    I haven’t taken it any further however, it was good enough to know that there is at least one upgrade path, if the numerous suggestions above didn’t work.

    August 27, 2015 at 10:09 am #834707
    0
    hedgey

    Hi Ian,
    I just bought a
    Hi Ian,
    I just bought a synapse DI2 disk and want to replace the 50/34 chain rings.
    Did you get anywhere with enough confidence to make a purchase regarding your queries on what to replace the crankset with ?

    thanks-A

    June 17, 2015 at 10:35 am #834705
    0
    3000ST1

    Have you tried Wheels
    Have you tried Wheels Manufacturing or Rotor for a compatible BB? They both do a range of BBs to fit BB30 frames (so may do a BB30a compatible BB as well) that have bearings to fit 30mm or 24mm axles (i.e. no spacers, additional reducers etc. plus the centre tubes are threaded for a secure fit). Might be a case of contacting them to see if they can help.

    June 17, 2015 at 7:07 am #834703
    0
    CXR94Di2

    These odd size bike frames
    These odd size bike frames are a pain when wanting to upgrade. I am so glad my bike had shimano everything, peace of mind 🙂

    June 16, 2015 at 9:22 pm #834701
    0
    Duffman58

    I had the same issue. You can
    I had the same issue. You can remove the built-in Preload ring device on the SRAM Cranksets, which give you an additional 5mm to make up for the 5mm wider bottom bracket shell width on the non-drive side. They are pressed onto the spindle, but can be removed by hand with a bit of effort. A 30mm wave washer can then be used between the crank arm and the bearing for preload, with 30mm shims added to get fine preload adjustment. Saved me from having to buy another crankset.

    May 15, 2015 at 9:58 pm #834699
    0
    semgalle

    There is one option out there
    There is one option out there in the market! Kogel Bearings makes a specific BB30A-24 conversion bottom bracket, no need for adapters!! Have a look: http://www.kogel.cc

    cheers!

    March 10, 2015 at 3:14 am #834697
    0
    macrophotofly

    E-mail FSA and check. I did
    E-mail FSA and check. I did read somewhere on the Cannondale website that all BB30 cranks will fit BB30A but I also agree with you that there doesn’t seem much of a gap to take up the 5mm extra width, so I wouldn’t trust that without checking with FSA first

    March 9, 2015 at 10:25 pm #834695
    0
    RR

    I wouldn’t change the cranks
    I wouldn’t change the cranks unless you need to, but if you ever do, then Wheels Manufacturing make an adapter that will allow Shimano and SRAM cranks to fit both BB30a and BB30: http://wheelsmfg.com/products/bottom-brackets/cannondale-bb30a/bb30a-adapters.html

    March 9, 2015 at 7:16 pm #834693
    0
    harman_mogul

    Sorry my bad, I have had the
    Sorry my bad, I have had the full briefing on Praxis bottom brackets…seems like it went in one ear and out of the other.

    March 9, 2015 at 10:53 am #834691
    0
    IanEdward

    Just a follow up, I heard
    Just a follow up, I heard back from Cannondale’s UK importers Cycling Sports Group.

    “Thank you for contacting us.

    Currently we have only tested the FSA BB386 for 100% compatibility.”

    From what I can see the BB386 basically has a longer spindle with spacers that can be removed if you have a 73mm wide BB30A shell.

    Good to know there are cranks/bottom brackets out there, shame there’s none in the CRC clearout that are the right length/chainring size for me though, will just have to consider it money saved!

  • Author
    Replies
Viewing 15 replies - 1 through 15 (of 18 total)
1 2
  • You must be logged in to reply to this topic.