The v series of low stack bars reintroduces the classic low stack bracket and places the extension below the handlebar by doing this a low stack armrest position is achieved which many time triallists favour the new extensions are ergonomically designed to provide a comfortable wrist position when mounted below the base bar the v4 extension built on a variation of the t4 extension bend is a higher rise and ergonomic s bend optimized to improve comfort and reduce fatigue while maintaining an