Top Speed with 19 tooth and mods? - Triumph Forum: Triumph Rat Motorcycle Forums
Air Cooled Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, Bobber, T100, Speedmaster, America, Thruxton, and Scrambler.


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post #1 of 17 (permalink) Old 08-13-2006, 03:41 PM Thread Starter
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I ran my T100 up early this AM and stopped at 7,500rpm in 4th-that showed 115mph. Any body got a better shot?? I did quit as I ran out of room. Just wondering if there is a lot more there in 5th or I am tapped out??? Bike is parts modified (no machinework or cams)

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post #2 of 17 (permalink) Old 08-13-2006, 04:33 PM
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I've done 5th 5000rpm 120mph but I don't have the t100.

Bonneville Black, Tach, AI-Removal, 19t Front Gear, UNI filter, Tear Drop slip-on's, corbin gunfighter, bar risers, highway screen, 2 50 watt lights and Love.
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post #3 of 17 (permalink) Old 08-13-2006, 05:22 PM
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110-115 MPH. 5th. gear around 6000+ RPM.
I know she had more to go. but, caught up to traffic.

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post #4 of 17 (permalink) Old 08-13-2006, 08:18 PM
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I looked at the speedo as I shifted from 4th to 5th at 8100 rpm...it read 120. I was nearing the top of a hill so I let off after shifting to 5th. I figure my speedo is around 10% fast, and I still have the 17 tooth counter sprocket.

Larry

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2003 T-100 (790cc), NARK, NH Togas, 8100 rpm rev limiter, 158 main jets, 42 pilot jets (less than 1 turn out on pilot screws), stock needles--no shims. 13 A/F ratio from 1100 rpm to 4000 rpm; 12 A/F ratio from 4000 rpm to 6000 rpm; 13 A/F from 6000 rpm to 8100 rpm.:D
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post #5 of 17 (permalink) Old 08-13-2006, 08:49 PM
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eff yes!!!!!
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post #6 of 17 (permalink) Old 08-14-2006, 01:24 AM
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As we all know the speedometer of the Bonnie is far from accurate.
The best way to calculate the real speed is by converting RPM into actual speed.
A good calculator can find at Gearing Commander

These are the figures I found for my factory standard T100.

As can be seen the T100 could have been called T130 :wink:
Anyway it is curious that the claimed maximum 66 BHP is given by Triumph at 7.200 RPM (200 RPM into the redline! )


[ This message was edited by: JMV2006 on 2006-08-14 01:25 ]

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post #7 of 17 (permalink) Old 08-14-2006, 02:04 AM
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For the ones with a 19-tooth front sprocket, they can name their bikes T135 Plus :upthumb:
(providing they can achieve 7,200 RPM in 5th gear :wink: )



[ This message was edited by: JMV2006 on 2006-08-14 01:22 ]

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post #8 of 17 (permalink) Old 08-14-2006, 02:18 AM
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Thats a cool program any chance I can down load it


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post #9 of 17 (permalink) Old 08-14-2006, 02:20 AM
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Pardon

Sorry didnt see the commander site
Brain now out of neutral

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post #10 of 17 (permalink) Old 08-14-2006, 03:21 AM
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Sorry to nit-pick but we have 17" rear tires, not 19".

I've adjusted the inputs.

Here's a 17 tooth front:



An 18 tooth:



& a 19 tooth:



Top speeds make a bit more sense now!

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