diff --git a/CanHacker.cpp b/CanHacker.cpp
index 734764a..5710e2b 100644
--- a/CanHacker.cpp
+++ b/CanHacker.cpp
@@ -59,7 +59,7 @@ void CanHacker::setClock(CAN_CLOCK clock){
 }
 
 CanHacker::ERROR CanHacker::connectCan() {
-    MCP2515::ERROR error = mcp2515->setBitrate(bitrate, canClock);
+    MCP2515::ERROR error = mcp2515->setBitrate(CAN_33KBPS, MCP_8MHZ);
     if (error != MCP2515::ERROR_OK) {
         writeDebugStream(F("setBitrate error:\n"));
         writeDebugStream((int)error);
@@ -163,32 +163,32 @@ CanHacker::ERROR CanHacker::receiveSetBitrateCommand(const char *buffer, const i
     }
     switch(buffer[1]) {
         case '0':
-            writeDebugStream(F("Set bitrate 10KBPS\n"));
-            bitrate = CAN_10KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         case '1':
-            writeDebugStream(F("Set bitrate 20KBPS\n"));
-            bitrate = CAN_20KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         case '2':
-            writeDebugStream(F("Set bitrate 50KBPS\n"));
-            bitrate = CAN_50KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         case '3':
-            writeDebugStream(F("Set bitrate 100KBPS\n"));
-            bitrate = CAN_100KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         case '4':
-            writeDebugStream(F("Set bitrate 125KBPS\n"));
-            bitrate = CAN_125KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         case '5':
-            writeDebugStream(F("Set bitrate 250KBPS\n"));
-            bitrate = CAN_250KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         case '6':
-            writeDebugStream(F("Set bitrate 500KBPS\n"));
-            bitrate = CAN_500KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         case '7':
             writeDebugStream(F("Bitrate 7 is not supported\n"));
@@ -198,8 +198,8 @@ CanHacker::ERROR CanHacker::receiveSetBitrateCommand(const char *buffer, const i
             return ERROR_INVALID_COMMAND;
             break;
         case '8':
-            writeDebugStream(F("Set bitrate 1000KBPS\n"));
-            bitrate = CAN_1000KBPS;
+            writeDebugStream(F("Set bitrate 33KBPS\n"));
+            bitrate = CAN_33KBPS;
             break;
         default:
             writeDebugStream(F("Unexpected bitrate\n"));
diff --git a/CanHacker.h b/CanHacker.h
index 1e79947..3047c5b 100644
--- a/CanHacker.h
+++ b/CanHacker.h
@@ -65,7 +65,7 @@ class CanHacker {
         static const char BEL = 7;
         static const uint16_t TIMESTAMP_LIMIT = 0xEA60;
 
-        CAN_CLOCK canClock = MCP_16MHZ;
+        CAN_CLOCK canClock = MCP_8MHZ;
         bool _timestampEnabled = false;
         bool _listenOnly = false;
         bool _loopback = false;
diff --git a/examples/softwareserial_debug/softwareserial_debug/softwareserial_debug.ino b/examples/softwareserial_debug/softwareserial_debug/softwareserial_debug.ino
index cb03333..2c7a956 100644
--- a/examples/softwareserial_debug/softwareserial_debug/softwareserial_debug.ino
+++ b/examples/softwareserial_debug/softwareserial_debug/softwareserial_debug.ino
@@ -31,7 +31,7 @@ void setup() {
     
     
     canHacker = new CanHacker(interfaceStream, debugStream, SPI_CS_PIN);
-    canHacker->enableLoopback(); // remove to disable loopback test mode
+    //canHacker->enableLoopback(); // remove to disable loopback test mode
     lineReader = new CanHackerLineReader(canHacker);
     
     pinMode(INT_PIN, INPUT);