The new B4 & B2 versions (the B designation being for front brake equipped karts) are the latest developments from the Sniper™ range. The B4 is a further development of the B2, using an additional two laser modules to point rearward at the back axle. Combined with the new rear axle target system included with the B4, you have the best complete chassis alignment system on the market. 

It's main features are:

• Measures toe, camber, chassis twist & squareness, caster, KPI and set true steering center.

• Units machined from billet aluminium. Targets machined from a custom aluminium extrusion. Comes standard as clear anodised but may be coloured depending on OEM brands.

• Mounting on 17mm spindles or 40mm hubs is included as a standard feature. Small clearance fit onto spindle or hub with thumbscrew activated clamping mechanism.

• High accuracy precision ground glass level vial is used for the ultimate in accuracy when performing caster and chassis twist measurements.

• Low reflectivity decals in matt finish to maintain a protected unit while providing the ultimate in laser dot accuracy.

• Comes packaged in a custom aluminium suite case with foam insert.

The B2 & B4 versions of the Sniper™ work in exactly the same way as the original, as far as the front of the kart is concerned. You set your front end geometry using the same visual grid system to measure toe and camber. Both B2 & B4  versions still fit inside the front wheels to enable dynamic settings to be measured with the kart fully loaded. The only real difference to the original is the shape.

The B4 has an additional laser module mounted within each unit, to point at the rear axle. To ensure accuracy and correct positioning, the B4 also has a much more accurate, precision ground, glass spirit level vial installed.

Once the B4 is fitted, the two rear facing lasers (one from each side of the kart) will produce a red laser dot on the rear target. This dot can then be used to determine the correct positioning of the rear wheels in relation to the front. It can be used to detect and measure chassis twist, and also to re-position the rear axle up or down to compensate. You can then read off compound kingpin inclination angle and angular change of camber.

The rear target is mounted to the axle by means of a radiused shaped recess in the aluminium extrusion it is produced from. A flexible rubber strap holds the target to the axle, and provides enough friction to accurately position one target in relation to the other, and in relation to the Sniper™, by means of the spirit level block provided with the unit.

The same spirit level block forms the basis of the new caster attachment. The block connects to a custom machined tripod stand, which in turn supports the caster scale. 

The caster scale harnesses the power of the laser beam to describe the angle formed by the caster plane of the kart when the steering wheel is turned.