I had two mates [ 1977 THAT WAS] had them TY50P"s , my they were slow, [ legislation] one rode to Aviemore [ 90mls ] on it, I had my DT175C.[ like Nayruff"s ], and at the campsite we saw a DT400B, we thought it was massive, we were all 11 stone then ,
Happy days,,,,,