diff --git a/rowers/metrics.py b/rowers/metrics.py
index 90dc2f84..b4140f1c 100644
--- a/rowers/metrics.py
+++ b/rowers/metrics.py
@@ -77,8 +77,8 @@ rowingmetrics = (
         'numtype':'float',
         'null':True,
         'verbose_name': 'Drive Length (m)',
-        'ax_min': 15,
-        'ax_max': 45,
+        'ax_min': 0,
+        'ax_max': 2.5,
         'mode':'both',
         'type': 'pro'}),