Any links would be cool – i bought a sram – shimano shim off ebay a while back when i planned to use a shimano bb with my sram chainset but never got round to it. Now i have a shiny hope bb – how do i get it to work with my sram gx chainset?

https://www.rutlandcycling.com/components/gears-drivetrain/hope-gxp-bb-converters_109653?currency=GBP&chosenAttribute=BBSP109&gclid=EAIaIQobChMIoKv255_M5wIVRLDtCh0XlwAdEAQYBSABEgJ9EPD_BwE&gclsrc=aw.ds

other shops available

look the same as the shimano to gxp ones i have 🙂

I’ve stopped running a Shimano-with-shim BB with my GXP cranks. Main reason was chain line. I couldn’t get the chain ring further out than 44mm (boost frame, so ideally need 52mm). You can’t run spacers on the drive-side with GXP cranks as the machined axle step won’t allow it. Moved back to accepting cheese-like GXP BB bearings as cost is minimal.

DUB?
https://www.sram.com/en/sram/models/fc-gx-1-b1

https://www.hopetech.com/_repository/1/documents/29mmBBConversionKit4-Issue01.pdf

https://www.hopetech.com/_repository/1/documents/29mmBBConversionKit1-Issue02.pdf

https://www.hopetech.com/_repository/1/documents/29mmBBConversionKit2-Issue02.pdf

https://www.18bikes.co.uk/hope-dub-bottom-bracket-conversion.html

https://www.leisurelakesbikes.com/320579/products/hope-29mm-bottom-bracket-conversion-kit.aspx

https://www.ebay.co.uk/p/13028686846

https://www.ebay.co.uk/itm/Hope-29mm-DUB-Bottom-Bracket-Conversion-Kit-1-BSA-PF46-/164071581866?hash=item26336da8aa

https://www.hopetech.com/_repository/1/documents/BBSelectionTable_Iss6_06.2019.pdf