Santa Cruz Blur 4 CC TR

It sits right in the middle. While it is built on a lightweight, efficient XC platform, the 115mm of travel and aggressive geometry make it capable enough for technical trail riding, making it an ideal choice for riders who want one bike that can handle both race days and long, rough backcountry loops.

The frame is designed to work best with forks between 100mm and 120mm. A 100mm fork will sharpen the handling for pure XC speed, while a 120mm fork will provide more confidence and stability on steeper, more technical descents.

The frame has a maximum tire clearance of 2.4 inches. This is standard for modern XC and light-trail bikes, offering a good balance between rolling efficiency and the grip needed for varied trail conditions.

The Blur 4 CC TR utilizes a standard 73mm threaded bottom bracket. This is a reliable, user-friendly choice that makes maintenance straightforward and helps prevent the creaking issues sometimes associated with press-fit systems.

The VPP (Virtual Pivot Point) suspension is engineered for high pedaling efficiency. It minimizes pedal bob under power, providing a firm platform for punchy climbs while still remaining active enough to maintain traction over roots and rocks.

You will need a 31.6mm diameter seat post. This is a common size, which gives you plenty of options for lightweight fixed posts or high-performance dropper posts.