diff --git a/src/info.c b/src/info.c
index 180ad8541..9fec49b81 100644
--- a/src/info.c
+++ b/src/info.c
@@ -5451,7 +5451,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		S_NULL,         // xdeathstate
 		sfx_itemup,     // deathsound
 		38*FRACUNIT,    // speed
-		24*FRACUNIT,    // radius
+		48*FRACUNIT,    // radius
 		48*FRACUNIT,    // height
 		0,              // display offset
 		100,            // mass
diff --git a/src/k_kart.c b/src/k_kart.c
index 185d26b8b..935b0bd9a 100644
--- a/src/k_kart.c
+++ b/src/k_kart.c
@@ -1964,7 +1964,7 @@ static void K_GetKartBoostPower(player_t *player)
 
 	if (player->kartstuff[k_invincibilitytimer]) // Invincibility
 	{
-		speedboost = max(speedboost, 3*FRACUNIT/8); // + 37.5%
+		speedboost = max(speedboost, (3*FRACUNIT)/8); // + 37.5%
 		accelboost = max(accelboost, 3*FRACUNIT); // + 300%
 	}
 
@@ -1975,7 +1975,7 @@ static void K_GetKartBoostPower(player_t *player)
 
 	if (player->kartstuff[k_ringboost]) // Ring Boost
 	{
-		speedboost = max(speedboost, FRACUNIT/8); // + 12.5%
+		speedboost = max(speedboost, FRACUNIT/5); // + 20%
 		accelboost = max(accelboost, 2*FRACUNIT); // + 200%
 	}