rock hopper Posted May 7, 2011 Report Share Posted May 7, 2011 I was wondering what is the different beteen a TLR 250 and a RTL 250 engine? Quote Link to comment Share on other sites More sharing options...
jerry27 Posted May 7, 2011 Report Share Posted May 7, 2011 I was wondering what is the different beteen a TLR 250 and a RTL 250 engine? Cannot give you the technical arguement, but as a rider who has a 1986 RTL 250 and a 1987 TLR 250, they are like chalk and cheese. The RTL has vastly more power, across the full engine range. The TLR is much smoother (= flatter!!) and generally easier to ride, but much less capable of handling modern trials. For an average clubman, I would say the TLR is more manageable, but the RTL gives a bigger grin factor! Quote Link to comment Share on other sites More sharing options...
woody Posted May 9, 2011 Report Share Posted May 9, 2011 The engine internals on the RTL and TLR are basically the same, piston, valves, cam etc. The RTL has a different ignition which gives a different power characteristic, smoother off idle than the TLR which in standard config is too sharp, prone to spit stall and doesn't rev out. Valve timing may differ as well. Later RTL had a bigger clutch and different gear ratios. Jerry - not sure which TLR you are referring to, the twinshock TLR wasn't made in '87, they were '84. The TLR250R was '87 but that was a different bike althogether, monoshock and a different engine. Quote Link to comment Share on other sites More sharing options...
jack85 Posted May 9, 2011 Report Share Posted May 9, 2011 Let me share you some engine Technical data: The TLR250 Honda official data for Europe and US market was: The ENGINE Air cooled 4-stroke Displacement: 249,8 cc Bore and stroke: 70 X 64,9mm Valve train: Overhead camshaft chain drive Maximum Horspower: 15hp at 6.000rpm Maximum Torque: 2 Kg/m at 4.000rpm Compression ratio: 8.3:1 Ignition: CDI (Capacitor Discharge Ignition) The RTL250 and RTL250S Honda official data for Europe and US market was: The ENGINE Air cooled 4-stroke Displacement: 249 cc Bore and stroke: 70 X 64,9mm Valve train: Overhead camshaft chain drive Maximum Horspower: 14hp at 6.000rpm Maximum Torque: 2,05 Kg/m at 4.000rpm Compression ratio: 8.3:1 Ignition: CDI (Capacitor Discharge Ignition) TLR250 had more power (1hp more) but less torque, 2Kg instead 2,05Kg RTL250 weight was 6Kg lighter, 82Kg while TLR was 88Kg Some Magazines at this time announced 16Hp for the RTL250 (No official data) The Honda Trials History Quote Link to comment Share on other sites More sharing options...
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