Triumphrat

BonnieRob

I plan on getting a tach in the near future but in the mean time, does anyone have a chart which shows MPH vs. RPM in different gearing?

I thought this was posted sometime in the past but couldn't find the link.

Thanks

Skyblue62

18T sprocket indicated 70mph in 5th 4,100 rpm thats all I have at the moment but will get back tomorrow

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Ian

webonnielad

This is to the red line 2nd - 5th.
But my bikes moded so look at my signature below to see how it relates to your bike.

Jon (UK)

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790cc 2003 T100 Bonneville. 18T Front Sprocket, AI Removed, 125 Mains, 40 Pilots, Thruxton Needles, 1 Shim,3mm Air Hole, Mixture screws 3 1/4 turns out left carb, 3 turns out right carb, Unifilter, NH Belmouth, NH Classic Togas with no mutes inserted, Stock Ignitor Unit. Hagon 320mm rear shocks & progressive fork springs. Last measured. 61.60 hp, , Max torque 48.40 in 5th gear at the rear wheel at 7200 rpm, 105 mph in 5th at 6500 rpm.

sponger

I posted this in another thread a few weeks ago when I checked MPH at about 7000 rpms:

1st - 50
2nd - 70
3rd - 85
4th - 95

I think in 5th at about 65 I am at 3500 rpms, and at 80 mph at about 4500 rpms with an 18 tooth sprocket on a '06 Bonnie Black 790cc.

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'06 Bonnie Black - AI and snorkel removed, TORs, K&N, IKON rear shocks, Hagon fork springs, Pingel, Tach added, K&Q seat, centerstand, Lucas Style Sport lights

aclud

This might be the link you're thinking about:

http://www.xs4all.nl/~ator0437/gc/

-AL

BonnieRob

Awesome link - thanks

Graphed it out (see attachement). Is it me or does that 1st gear seem awfully tall?

Attached Files

Bonnie Tach.doc (24.5 KB, 32 views)

aclud

I don't think that takes anything other than the basic math into account, so that's probably why it seems a bit different. I got into the habit of taping the speedo at the track (one less piece of information to process) so I just pretty much listen and don't pay attention to RPM (my Bonnie black lacks one anyway).

-AL

BonnieRob

Is that I was sure I wasn't using the whole rev range (just by sound) and this confirms it.