The listing said the rear and front derailleur is GRX600 but in some articles i found out that there is no GRX600 rear derailleur. So is this 400 and what about the front one. Thank you for your help!
by Melon987
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The listing said the rear and front derailleur is GRX600 but in some articles i found out that there is no GRX600 rear derailleur. So is this 400 and what about the front one. Thank you for your help!
by Melon987