Originally Posted by
Steve_sr
THis was supposed to be a Shimano 2X GRX build but showed up with a Dura-ace BB and chain.
I see, but that has nothing to do with length, which is a function of chainstay length and sprocket sizes.
Anyway, other than inconvenience, this is strictly a minor side issue.
In any case, you need to get the maker to resolve the issue and correct any material issues. In the event he remains adamant, I have a suggestion. There are a number of builders and knowledgeable proshops in Colorado, (and/or) near you. See if the maker is willing to appoint a mutually agreeable referee to determine if the bike is to spec, with the understanding that the maker will correct it if necessary. Also, the referee's fee would be agreed to in advance and paid by the loser.