As many of you anxiously await the arrival of your new BD7 kits this week, here are some comments from Umino regarding the most commonly asked,

"Which options parts do I need?"

However, since not everyone runs on the same surface conditions, provided below are some recommendations based on the team's experience at both races and testing.

For medium grip asphalt/tarmac and low grip carpet tracks

B7-203 Aluminum special servo mount BD-010FW Front double joint universal shafts Standard kit suspension arms are recommended, as for these surface conditions the kit arms allow the car to be more compliant, and provide easier drivability.

For high grip asphalt/tarmac and high grip carpet tracks

BD-008FG Graphite front arms BD-008RG1 Graphite rear arms BD-415SG Graphite steering blocks BD-415RG Graphite rear hub carriers B7-203 Aluminum special servo mount BD-010FW Front double joint universal shafts Changing the suspension pieces to graphite will provide sharper response and improved handling. On tracks where grip-rolling is an issue, it is recommended to at least change the front and rear suspension arms to graphite.

For reference, listed below are the differences between the cars of Naoto and Ronald from the recently held 2012 Japanese Nationals.

Ronald's car, mostly stock with the following options BD-010FW Front double joint universal shafts BD-010RW Rear double joint universal shafts B7-TBS Titanium turnbuckle set B7-TSS Titanium screw set B7-203 Aluminum special servo mount Naoto's car, with the following options BD-008FG Graphite front arms BD-008RG1 Graphite rear arms BD-415SG Graphite steering blocks BD-415RG Graphite rear hub carriers BD-010FW Front double joint universal shafts BD-010RW Rear double joint universal shafts b7_tbs.htmlB7-TBS Titanium turnbuckle set B7-TSS Titanium screw set B7-203 Aluminum special servo mount