(Image credit: Giant) Unbound Gravel is just around the corner, with the racing kicking off tomorrow. Rain is threatening, and there are already videos surfacing online of riders' bikes covered with the infamous Unbound mud. The latest fresh gravel tech of the year has appeared today in the shape of a prototype Giant gravel bike, which has been teased on the brand's Instagram page. The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox! Tom joined the Cyclingnews team in late 2022 as a tech writer. Despite having a degree in English Literature he has spent his entire working life in the cycling industry in one form or another. He has over 10 years of experience as a qualified mechanic, with the last five years before joining Cyclingnews being spent running an independent workshop.…