FXR top speed?

[RDjase]

What is a FXR's top speed with standard 14/49 gearing?

My son Tyler rode his at Manfeild in the weekend (on the back track, on Saturday) and had a ride at lunchtime on sunday. He said it wouldnt rev anymore and I assume it was on the rev limiter.
It was windy and had a tail wind on the back straight, wasn't missing/rev limited on the front straight

What is the rev limit ?

What are the gearbox ratio's ?

What is the primary ratio ?

I will do some maths and work out the speed

[Yow Ling]

a real good one will do about 140
rev limiter is 12900 or 13000

go to fxr150.co.nz most tech info is there

[EJK]

14 Front, 47 rear + 88kgs rider.

148kph on dashboard wtih about 3-400rpms left to the limiter.

[RDjase]

a real good one will do about 140
rev limiter is 12900 or 13000

go to fxr150.co.nz most tech info is there

He is a light weight, 45kg ish with his gear on, Bike has clipons, RS125 tail piece, no road gear, stock carb , pod filter, raised the needle one groove , and a short pipeand muffler. I made a wiring harness so I didnt cut up the original. It could be a road bike again if I weld on the rear subframe....................doubt that will ever happen tho

I will check out the fxr forum,

Cheers

[RDjase]

Transmission:
Clutch: Wet multi-plate type
Transmission: 6-speed constant mesh
Gearshift pattern: 1 down 5 up
Primary reduction ratio: 3.500 (70/20)
Final reduction ratio: 3.428 (48/14)
Gear ratios, Low: 3.000 (33/11)
2nd : 1.857 (26/14)
3nd : 1.368 (26/19)
4th : 1.095 (23/21)
5th : 0.923 (24/26)
Top : 0.800 (20/25)
Drive chain: RK 428HO, 132

Is that 1st gear ratio correct?

Seems a big jump into 2nd, havnt riden my sons bike enough to take any notice, just a few laps at Roys Hill

[koba]

Best speed at the sprints for a standard road one was 127.5.
Thats real speed, his speedo was reading somthing silly high.

[Kickaha]

Best speed at the sprints for a standard road one was 127.5.
Thats real speed, his speedo was reading somthing silly high.

When I ran my one through a flying km it was reading 140 and doing 121, that was a stocker

[koba]

When I ran my one through a flying km it was reading 140 and doing 121, that was a stocker

True, So was this.
Maybe he had the mirrors off and the like but he rode it to the event.
It was a perfect day on a flying 1/4. Think the runup is 2.2km. the course is ever so slightly down hill.

Gotta love the cheapo speedos!

[Str8 Jacket]

I may, or may not have seen 144 on my speedo this morning. Must've been going damn near 120 cause I was overtaking people!

[Buddha#81:Me]

I may, or may not have seen 144 on my speedo this morning. Must've been going damn near 120 cause I was overtaking people!

Reckless fool

[Shorty_925]

What is a FXR's top speed with standard 14/49 gearing?

My son Tyler rode his at Manfeild in the weekend (on the back track, on Saturday) and had a ride at lunchtime on sunday. He said it wouldnt rev anymore and I assume it was on the rev limiter.
It was windy and had a tail wind on the back straight, wasn't missing/rev limited on the front straight

What is the rev limit ?

What are the gearbox ratio's ?

What is the primary ratio ?

I will do some maths and work out the speed

Yea I heard him over the back on the limiter, thought it was on the CBR though?

[Str8 Jacket]

Reckless fool

Im training so that I can ride the Weds night rides here in Welly.

[Number One]

Im training so that I can ride the Weds night rides here in Welly.

You trying to have to try talkin your way out of another ticket hun?

Perhaps we'll be seeing an almost identical thread but with a slightly different outcome - take it easy racer girl

[avgas]

They get to 140 fine, its getting them to 152 (on speedo) which is difficult......take the distance it took you to get from 0-140.....and triple it to get to 152.

FYI
152 on speedo works out as 135kph on the radar.
Which was a $330 fine.....many moons ago.

[woodyracer]

At hampton i was hitting 160km/h or so down the back straight and i passsed modified ones with ease.. so i would say a good stock one would be doing around 130km/h...