GURU PHOTON V4 (White/Red) | A Rare Carbon Frame that Fuses Lightness and Rigidity at a High Level

It's not just about lightness, nor is it just about rigidity. This masterpiece frame embodies the "just right speed" that GURU achieved.

The "PHOTON V4," crafted by the renowned Canadian brand GURU, is a high-performance carbon frame that combines the best of the lightweight "PHOTON SL" model and the racing "PHOTON R" model.

The frame, made from T700 carbon, features a simple, streamlined design. The main tubes, with a cross-section that is a hybrid of round and square, and the compact rear triangle, achieve an excellent balance of lightness and high torsional rigidity.

It offers a exquisite ride feel that is not overly stiff, yet provides direct propulsive force in response to pedaling. It's versatile enough for racing and long-distance rides alike.

Since the brand itself has ceased to exist, units in good condition are becoming increasingly rare each year. This frame set allows you to enjoy not only its performance but also the "satisfaction of ownership."

Features

• Lightweight yet highly rigid frame design using T700 carbon
• A highly balanced model that combines the lightness of PHOTON SL and the rigidity of PHOTON R
• Excellent torsional rigidity thanks to main tubes with a hybrid round/square cross-section
• High responsiveness and acceleration from a compact rear triangle
• High drive efficiency due to BB86 standard
• Balance of comfort with 27.2mm seatpost compatibility
• Simple and timeless design that doesn't feel dated
• A rare carbon road frame due to the brand's demise

SPECIFICATIONS

• Frame: T700 carbon
• Fork: 1-1/8 - 1-1/4 tapered
• BB Standard: BB86 (PF86)
• Seatpost Diameter: 27.2mm
• End Spacing: F100 / R130mm
• Headset: Included (no press-fit)
• Seat Tube Length: 515mm
• Top Tube Length (horizontal): 555mm
• Estimated Rider Height: 175-185cm
• Color: White / Red

This frame definitely gives a very clear sense of "moving forward firmly" the moment you ride it.

It lacks the unreliability often associated with lightweight frames, and you can feel the pedaling force directly translating into propulsion. Yet, it's not excessively stiff, offering a well-balanced feel that's easy to handle even on long rides.

The design still doesn't feel old-fashioned, and it has a profound versatility that allows for a wide range of setups depending on the components and wheels.

And of course, for those drawn to the GURU brand history, it holds a special significance. I believe it's a rare carbon frame that "you want now more than ever."