Topic: breaking 100 mph

[bryanj]

1971 on a 1959 Triumph T110 indicated 110mph middle of day on a UK dual carriageway(has a median divider) scared #$%*less when tried to stop with 7 inch sls drum front brake!!

[Alaxy Galaxy]

Around 2005-2006 I took my 400/4 up to an indicated 110mph. It was probably a bit slower, but it was quick enough for me. I can't bring myself to go much faster than 85mph with this one (got 2 kids now), but the bike wants to go faster. I might bring it to a track day just to see what it can do.

I've never experienced any wobble either, but I'm not a big man (5'4", 120lbs).

[grcamna2]

That's an interesting video.
I'll remember to keep my tire pressures checked,front fender/fork brace tight,front forks maintained and steering bearings properly snug.I would like to see a video of the 'string method' way of checking front/rear wheel alignment.
I think the choice of tires/sizes should be carefully chosen plus wheel alignment.Have any of you been challenged by certain road surfaces/rain grooves?

[andy750]

On Autobahn I held +100 mph most of the time with passenger and luggage. 836cc and probably closer to 80whp.
 
No wobble at all. From north to south Germany around 1200km. + thru Austria, Italy or Spain another year.

 

+1. I have been fortunate to ride both in the US and in German autobahns on the same CB750K2 (stock). On the autobahn rode at 100+mph for hours as we went from the Netherlands to Munich. At that speed (~110mph) we were getting passed easily by all the cars . Bike never had a wobble or any handling issues and stopping wasnt an issue as few exits and most importantly Germans know what lane to be in so no one sits in the outside 2 lanes. Both my CB750 K4 and K2 have been above 100 mph (GPS-recorded) with no issues.

[evinrude7]

That's an interesting video.
I'll remember to keep my tire pressures checked,front fender/fork brace tight,front forks maintained and steering bearings properly snug.I would like to see a video of the 'string method' way of checking front/rear wheel alignment.
I think the choice of tires/sizes should be carefully chosen plus wheel alignment.Have any of you been challenged by certain road surfaces/rain grooves?

sometime between last fall and early spring i posted about an oddity i felt in the front end.  stopped and yanked on the front end and nothing seemed out of place.  i believe it was deemed a longitudinal pavement seam in the road that i went back and found.  we have a freeway here in nashville that had grooved concrete on much of it a few years back.  you feel a little squirrely on it but it doesn't result in disaster. 

[seanbarney41]

that groovey pavement squirm is largely dependent upon front tire design...ribbed type tread such as Avon Speedmaster, Dunlop K100?, and those vintage Continentals that everyone seems to otherwise love, and it seems like you are gonna die!  More modern tread design and its fine...

[Doobie]

+1. I have been fortunate to ride both in the US and in German autobahns on the same CB750K2 (stock). On the autobahn rode at 100+mph for hours as we went from the Netherlands to Munich. At that speed (~110mph) we were getting passed easily by all the cars.

I will never forget doing 100+ mph on a Triumph Bonneville on a trip from Paris to Stuttgart and getting blown off the autobahn by Porsche 911s like it was nothing. Although I lived in Germany for many years off and on, it was the only time I was on the autobahn on a motorcycle (the Triumph wasn't mine sadly).


I've taken my K6 up to 100 mph. There was still plenty more in it but after 90 mph these old bikes get too hairy for me. I just put my CB750F on the road and I'll probably take it up to 100 once or twice to see what it feels like but that will be it.

[Redline it]

i was driving, well roading a GI water truck across town, one morning, near a busy high school (the one i went to,) i was about 18, the last thing the superintendent said to me was to go slow and take it easy. he didn't tell me why. after about 8 miles and i could see the job, i was going just slightly downhill, not steep. these things didn't have seat belts. there was about a half tank of water, truck was about 4000 or 6000 gal. and there's traffic going the opposite way 50+ mph. i'm going about 15 or 20mph. all of a sudden the steering wheel started going from lock to lock, hitting the brakes only stopped it before the next high speed wobble shockwave would knock me back off in the other direction. felt like the cab was falling off. dirt and dust filled the cab, the truck was all over the road barely missing head on cars.  the superintendent would of made a excellent member on this forum site. he didn't have much to say in terms of details. i walked a dozer kamatsu d-65e  the size of d7 caterpillar, not real big, straight off an inverted vertical rock face, onto to light loads of dry topsoil, that i just pushed off, on solid rock. the truck was probably 2nd to that. other than water all over the truck and highway nothing happened to it, the dozer was totaled. landed on its top square and sprung itself back over onto its tracks, i wasn't wearing the seatbelt. good times.