diff --git a/src/jimgw/single_event/transforms.py b/src/jimgw/single_event/transforms.py
index 832c84a9..cb60e98b 100644
--- a/src/jimgw/single_event/transforms.py
+++ b/src/jimgw/single_event/transforms.py
@@ -111,77 +111,38 @@ def named_inverse_transform(x):
 
         self.inverse_transform_func = named_inverse_transform
 
+def named_m1_m2_to_Mc_q(x):
+    Mc, q = m1_m2_to_Mc_q(x["m_1"], x["m_2"])
+    return {"M_c": Mc, "q": q}
+
+def named_Mc_q_to_m1_m2(x):
+    m1, m2 = Mc_q_to_m1_m2(x["M_c"], x["q"])
+    return {"m_1": m1, "m_2": m2}
+
+ComponentMassesToChirpMassMassRatioTransform = BijectiveTransform((["m_1", "m_2"], ["M_c", "q"]))
+ComponentMassesToChirpMassMassRatioTransform.transform_func = named_m1_m2_to_Mc_q
+ComponentMassesToChirpMassMassRatioTransform.inverse_transform_func = named_Mc_q_to_m1_m2
+
+def named_m1_m2_to_Mc_eta(x):
+    Mc, eta = m1_m2_to_Mc_eta(x["m_1"], x["m_2"])
+    return {"M_c": Mc, "eta": eta}
+
+def named_Mc_eta_to_m1_m2(x):
+    m1, m2 = Mc_eta_to_m1_m2(x["M_c"], x["eta"])
+    return {"m_1": m1, "m_2": m2}
+
+ComponentMassesToChirpMassSymmetricMassRatioTransform = BijectiveTransform((["m_1", "m_2"], ["M_c", "eta"]))
+ComponentMassesToChirpMassSymmetricMassRatioTransform.transform_func = named_m1_m2_to_Mc_eta
+ComponentMassesToChirpMassSymmetricMassRatioTransform.inverse_transform_func = named_Mc_eta_to_m1_m2
+
+def named_q_to_eta(x):
+    return {"eta": q_to_eta(x["q"])}
+def named_eta_to_q(x):
+    return {"q": eta_to_q(x["eta"])}
+MassRatioToSymmetricMassRatioTransform = BijectiveTransform((["q"], ["eta"]))
+MassRatioToSymmetricMassRatioTransform.transform_func = named_q_to_eta
+MassRatioToSymmetricMassRatioTransform.inverse_transform_func = named_eta_to_q
 
-@jaxtyped(typechecker=typechecker)
-class _ComponentMassesToChirpMassMassRatioTransform(BijectiveTransform):
-    """
-    Transform chirp mass and mass ratio to component masses. Instantiated to object below.
-    """
-
-    def __init__(self):
-        name_mapping = (["m_1", "m_2"], ["M_c", "q"])
-        super().__init__(name_mapping)
-
-        def named_transform(x):
-            Mc, q = m1_m2_to_Mc_q(x["m_1"], x["m_2"])
-            return {"M_c": Mc, "q": q}
-
-        self.transform_func = named_transform
-
-        def named_inverse_transform(x):
-            m1, m2 = Mc_q_to_m1_m2(x["M_c"], x["q"])
-            return {"m_1": m1, "m_2": m2}
-
-        self.inverse_transform_func = named_inverse_transform
-
-
-@jaxtyped(typechecker=typechecker)
-class _ComponentMassesToChirpMassSymmetricMassRatioTransform(BijectiveTransform):
-    """
-    Transform mass ratio to symmetric mass ratio. Instantiated to object below.
-    """
-
-    def __init__(self):
-        name_mapping = (["m_1", "m_2"], ["M_c", "eta"])
-        super().__init__(name_mapping)
-
-        def named_transform(x):
-            Mc, eta = m1_m2_to_Mc_eta(x["m_1"], x["m_2"])
-            return {"M_c": Mc, "eta": eta}
-
-        self.transform_func = named_transform
-
-        def named_inverse_transform(x):
-            m1, m2 = Mc_eta_to_m1_m2(x["M_c"], x["q"])
-            return {"m_1": m1, "m_2": m2}
-
-        self.inverse_transform_func = named_inverse_transform
-
-
-@jaxtyped(typechecker=typechecker)
-class _MassRatioToSymmetricMassRatioTransform(BijectiveTransform):
-    """
-    Transform mass ratio to symmetric mass ratio. Instantiated to object below.
-    """
-
-    def __init__(self):
-        name_mapping = (["q"], ["eta"])
-        super().__init__(name_mapping)
-
-        self.transform_func = lambda x: {"eta": q_to_eta(x["q"])}
-        self.inverse_transform_func = lambda x: {"q": eta_to_q(x["eta"])}
-
-    def __repr__(self):
-        return f"{self.__class__.__name__[1:]}()"
-
-
-ComponentMassesToChirpMassMassRatioTransform = (
-    _ComponentMassesToChirpMassMassRatioTransform()
-)
-ComponentMassesToChirpMassSymmetricMassRatioTransform = (
-    _ComponentMassesToChirpMassSymmetricMassRatioTransform()
-)
-MassRatioToSymmetricMassRatioTransform = _MassRatioToSymmetricMassRatioTransform()
 
 ChirpMassMassRatioToComponentMassesTransform = reverse_bijective_transform(
     ComponentMassesToChirpMassMassRatioTransform