The Dual Flex system used on the SIDI Crossfire 3 SRS does not only limit lateral hyperflexion, but also features hard stops at the limit of the anatomically allowed range of motion that limit hyperextension of the ankle joint. The adjustabillity of the exclusive Dual Flex system with its four floating independent straps enables the Crossfire 3 SRS boots to provide each rider with a personal fit no matter their body shape or whether or not knee braces are used.
Adjustable Calf System:
Sidi's exclusive double adjustable calf plate system allows the rider to adjust the inner diameter of the Crossfire boots at the calf. This system, along with longer upper straps, allows the Crossfire 3 SRS boot to accommodate riders with larger calves much easier than even the previous Crossfire 2 Boots. The inner plate is made of two different materials; a rigid one to support the boot and a heat resistant one to protect the rider's leg from exhaust heat. The new inner heat shield is made of a high grip material.
Sidi boots do not incorporate inner booties into their design, and for good reason. Booties make the design larger and cumbersome, add to the boot's thickness, which interferes with shifting. Plus, inner booties retain body heat affecting the rider's performance and comfort.
Cam-lock buckle system incorporates a strap memory retention system.
Adjust the straps once and they will be at the same position for every ride after that. No more readjusting for every ride or mid-day during a ride.
The tip of the toe on the Crossfire is covered with plastic to protect the base material and seams against abrasion from brush, etc. Plastic shift and brake lever guards on the top of each foot area.
Sole boat features a more cupped and thicker design so the rider’s foot rests deeper into the sole system
Removable arch support
New ankle pivot system designed to have a hard limit of foot/ankle hyperextension
New sole boat features a more cupped and thicker design so the rider’s foot rests deeper into the sole system
New Dovetail SR anti-skid rubber sole covers the arch area of the sole and is replaceable using hand tools
Toe and heel areas on the Dovetail SR sole are now a permanent part
LaminatedTechnomicrobase material in all areas
Slim, cool non-bootie design
Calf plate system features an inner double adjustment that expands to fit the largest calf or knee brace system
Inner heat shield made of high grip material
Removable arch support
Toe area covered in protective plastic
New rigid, shock resistant, anatomically shaped heel hold the riders foot firm and thus resists twisting while offering added protection
Replaceable, sleek, micro adjustable cam lock buckle system with memory retention nylon straps
All buckles move independently of each other and have just one fixed point (by a screw) which allows easy closure and the buckles can adapt to the rider’s position as they pivot on the mounting screw as the rider changes position on the bike
Lower buckle guards help protect against opening due to an impact
Complete central strap system can be easily replaced and is available in two sizes
Lined with anti-abrasion Cambrelle in the foot area for comfort, the upper is lined with Teflon mesh which prevents complete absorption of water and sweat. These materials will not retain water or sweat on the inside of the boot. The boot will dry quickly and the treatment also prevents the onset of mold
All bolt-on parts are replaceable
Replaceable shin plate
Malleolus external plastic guard with ergonomic closed cell foam padding internally to enhance protection of those tender small foot bones
Innovative Dual Flex System upper offers the industry’s best fit, especially with knee braces
Replaceable inner kick starter/foot peg nylon guard on the inside area of both boots
Boot leg is fully assembled with screws, is stitch-free and entirely replaceable