749s vs 749R

[Cigarlvr]

What is the difference between the two? I know on the 999 there is some carbon on it but from what I see on the 749R it looks like suspention and a few more HP

[jlcihak]

Originally Posted by Cigarlvr

What is the difference between the two? I know on the 999 there is some carbon on it but from what I see on the 749R it looks like suspention and a few more HP

this is from DUCATI.COM

Here is the S
CHASSIS
Frame Tubular steel trellis
Wheelbase 1420 mm / 55.9 in
Rake 23.5° - 24.5°
Front suspension Showa 43 mm upside-down fully adjustable fork with TiN surface treatment
Front wheel travel 125 mm / 4.9 in
Front brake 2 x 320 mm semi-floating discs, 4-piston 4-pad caliper
Front wheel Y-shaped 5-spoke light alloy 3.50 x 17
Front tyre 120/70 ZR 17
Rear suspension Progressive linkage with fully adjustable Showa monoshock
Rear wheel travel 128 mm / 5 in
Rear brake 240 mm disc, 2-piston caliper
Rear wheel Y-shaped 5-spoke light alloy 5.50 x 17
Rear tyre 180/55 ZR 17
Fuel tank capacity 15.5 L / 4.1 US gal (includes 3 L / 0.8 US gal reserve)
Weight * 186 kg / 410 lbs
Seat height 780 mm / 30.7 in
Instruments Speedometer, rev counter, high beam indicator, turn signals, oil pressure warning light, low fuel warning light, neutral light, water temperature, immobilizer system
Warranty 2 years unlimited mileage
Colour combinations:
(Tank-Frame-Wheels) (red-red-black) (black-black-black)
Versions Single or dual seat (dual seat not available in North America)
* = The weight excludes battery, lubricants and, where applicable, cooling liquid.
ENGINE
Type L-twin cylinder, 4 valves per cylinder Testastretta Desmodromic; liquid cooled
Displacement 748 cc
Bore x Stroke 90 x 58.8 mm
Compression Ratio 12.3:1
Power* 85.4 kw - 116 hp @ 10500 rpm
Torque* 8.4 kgm (60.8 lb-ft) @ 8500 rpm
Fuel injection Marelli electronic fuel injection, 54 mm throttle body
Exhaust Single steel muffler with catalytic converter
Emissions Euro2
TRANSMISSION
Gearbox 6 speed
Ratios 1st 37/15, 2nd 30/17, 3rd 28/20, 4th 26/22, 5th 24/23, 6th 23/24
Primary drive Straight cut gears; ratio 1.84
Final drive Chain; Front sprocket 14; Rear sprocket 38
Clutch Dry multiplate with hydraulic control
POWER CURVE Click here
* = Data calculated using an inertia dynamometer

here is the R

Frame Tubular steel trellis
Wheelbase 1420 mm / 55.9 in
Rake 23.5° - 24.5°
Front suspension Öhlins 43 mm upside-down fully adjustable fork with TiN surface treatment, for radial calipers
Front wheel travel 120 mm / 4.7 in
Front brake 2 x 320 mm semi-floating discs, 4-piston 4-pad radial caliper
Front wheel Y-shaped 5-spoke light alloy forged 3.50 x 17
Front tyre 120/70 ZR 17
Rear suspension Progressive linkage with fully adjustable Öhlins monoshock
Rear wheel travel 128 mm / 5 in
Rear brake 240 mm disc, 2-piston caliper
Rear wheel Y-shaped 5-spoke light alloy forged 5.50 x 17
Rear tyre 180/55 ZR 17
Fuel tank capacity 18.3 L / 4.8 US gal (includes 3 L / 0.8 US gal reserve)
Weight * 183.5 kg / 405 lbs
Seat height 780 mm / 30.7 in
Instruments Speedometer, rev counter, high beam indicator, turn signals, oil pressure warning light, low fuel warning light, neutral light, water temperature, immobilizer system
Warranty 2 years unlimited mileage
Colour combinations:
(Tank-Frame-Wheels) (red-red-black)
Versions Single seat
* = The weight excludes battery, lubricants and, where applicable, cooling liquid.
ENGINE
Type L-twin cylinder, 4 valves per cylinder Testastretta Desmodromic; liquid cooled
Displacement 749 cc
Bore x Stroke 94 x 54 mm
Compression Ratio 12.7:1
Power* 89.1 kw - 121 hp @ 10500 rpm
Torque* 8.6 kgm (62.2 lb-ft) @ 8250 rpm
Fuel injection Marelli electronic fuel injection, 54 mm throttle body
Exhaust Single steel muffler with catalytic converter Termi I belive or so the pic shows
Emissions Euro2
TRANSMISSION
Gearbox 6 speed
Ratios 1st 37/15, 2nd 30/17, 3rd 28/20, 4th 26/22, 5th 24/23, 6th 23/24
Primary drive Straight cut gears; ratio 2.11
Final drive Chain; Front sprocket 15; Rear sprocket 35
Clutch Dry multiplate with hydraulic control slipper clutch
POWER CURVE Click here
* = Data calculated using an inertia dynamometer
close


*** if you can afford it get the R - I got a dark because I could pay cash for it. My next Duc will be a R either the 749 or 999. Depends on how much cash I have the day I get the wild hair up my bum. ***

Good luck and happy shopping .

[Bella749]

The "R" model has quite a few internal engine upgrades as well:

Larger bore/shorter stroke
Bigger Titanium valves
Hotter cams
Ti rods
Lighter crank
Slipper clutch as standard

Exhaust is same as the standard fare, slip-on Termi was included some years (not '05 if I recall)

The R model is a big leap in track performance over the S, but unfortunately nowhere near the RS or Corse bike spec. If I were are a die-hard enthusiast, do alot of trackdays and have the money, I'd get one. Too bad I don't have the money

[lastblast]

I wonder why they put the slipper on the 749R and not the 999R. I ended up having to spend another $1800 for a slipper for my Xerox

[jlcihak]

Originally Posted by lastblast

I wonder why they put the slipper on the 749R and not the 999R. I ended up having to spend another $1800 for a slipper for my Xerox

Because they already know you got money to burn lol

[xseal]

Has to do with WSS rules versus WSB rules. SB rules are much more liberal, and the clutch, gas tank, etc. all get changed for racing. In WSS, all that stuff has to be "stock," so the 749R is actually far closer to a full kit race bike than the 999R.

[B_Cebrian]

The other large difference between the R and the S is the valve retaining system. The R uses a thinner valve stem and an interference fit retainer. The S uses the standard system. The adjustments last longer but I expect, after reading the service manual, are a serious pain when it's time to replace shims.

[Bella749]

Originally Posted by B_Cebrian

The other large difference between the R and the S is the valve retaining system. The R uses a thinner valve stem and an interference fit retainer. The S uses the standard system. The adjustments last longer but I expect, after reading the service manual, are a serious pain when it's time to replace shims.

Actually, '04+ S models have that system as well. You actually have to pull the heads to adjust the valve clearance. From what I've heard, "if a valve is out of spec, it came that way from Bologna". Have'nt adjusted one, but I hear it's a bitch to get the retainers out.

[galaxy]

Originally Posted by Bella749

Actually, '04+ S models have that system as well. You actually have to pull the heads to adjust the valve clearance. From what I've heard, "if a valve is out of spec, it came that way from Bologna". Have'nt adjusted one, but I hear it's a bitch to get the retainers out.

Not true. The S models do not have the same retaining system as the R. Valve adjustments simply require pulling the caps and removing the cams to access the shims. Pretty simple/straight foward job...relatively speaking of course. Just did mine a while back and had to adjust one valve per cyl and no head removal required.

[Bella749]

Originally Posted by galaxy

Not true. The S models do not have the same retaining system as the R. Valve adjustments simply require pulling the caps and removing the cams to access the shims. Pretty simple/straight foward job...relatively speaking of course. Just did mine a while back and had to adjust one valve per cyl and no head removal required.

no shit? it uses the standard wire collet, or does it use MBP style? I was bidding on a set of '04 749S heads that had the MBP style and it was a stock setup. Interesting.