Power (Once * Fire): Immediate Reaction. After beginning hit by an attack, the bike may explode.
Das "beginning" sollte wohl "being" heissen.
Aber die Formulierung "...hit by an attack, the bike may explode." ist arg Wischiwaschi.
Dann doch gleich das Bike doch als Mount (Ich orientiere mich mal am Horse):
Somewhat robust bike
Medium construct (mount)
Level 1 Brute Minion XP 25
HP 1; a missed attack never damages a minion.
Initiative - (Uses Riders Initiative only)
AC 13, Fortitude 15, Reflex 13 (only if mobile), Will - (immune to mental attacks) Perception - (Can't see anything)
Resist 4/all
Speed 10
Traits
Charger (mount)
The bike's rider gains a +3 bonus to damage rolls on charge attacks.
Standard Actions
Steamroll
Effect: The bike moves up to its speed and can move through enemies’ spaces during the move. Each time the bike enters an enemy’s space for the first time during the move, it makes the following attack against that enemy
Attack: Melee 0 (one creature); +4 vs. Reflex
Hit: 5 damage, and the target falls prone.
Each time the bike overruns a target it takes 1d4+1 damage (Resist applies)
Triggered Actions:
Trigger: Bike is reduced to 0 hp.
Attack (No Action): Close burst 2 (creatures in burst); +6 vs. Reflex
Hit: 2d3 fire damage.
Effect: Rider takes 5 ongoing fire.
Str 19 (+4) Dex 13 (+1) (if moving) Wis -
Con 16 (+3) Int - Cha 10 (0)
Alignment unaligned Languages -
The Bike has no actions itself, it only can gain actions by a rider.