I need to buy around 4/5  road and gravel rims to swap some existing wheelsets to wider rims but most sellers I am aware of will only sell complete wheelsets. Who is a good provider than has reliable shipping times?

Light Bicycle, Farsports, Nextie, BTLOS, etc. Not sure if they might do a discount for a bulk order, you should ask.

How about KBBKwheels? Has anyone tried their rims?

Hello! Please tell us the specific rim specifications you need (such as wheel diameter, inner width, outer width, etc.)? If the rims are in stock, we can arrange immediate shipment and provide reliable logistics to ensure that you receive the product on time. In addition, if you have any special requirements, we also provide customized services.

As a new brand with more than ten years of experience in manufacturing carbon fiber rims, we are currently running a promotion: a box of 10 road rims can enjoy a special discounted price. Please tell us your requirements and we will serve you wholeheartedly!