Shane Watts Video Riding Tip: Compression Hop Launch Technique
I believe this is a topic which hasnt been explored much on here as I havn't been able to find any info.
I am curious to know if there is a road legal tyre that isnt knobbly that will fit onto standard 21" and 19" rims on a cr250.
I plan on commuting on the bike on road and dont thing I'll be using it much on the dirt any more.
A few days ago I nearly head on with a T junction because the knobblys didnt hold up while breaking.
Has anyone on here switched from knobbly to road legal flattrack type tyre on original rims?
Any pros cons to doing this?
Sizes, makes, options would be appreciated
By Bryan Bosch
New more powerful 449cc engine delivers faster lap times New race-ready suspension, chassis and brakes for sharp handling New electric start offers quick and easy starting New hydraulic clutch gives the rider improved clutch feel lap after lap New 49mm SHOWA Coil Spring Fork with A-KIT Technology New finger-follower valve actuation contributes to increased power Power
Engine: 4-stroke, 1-cylinder, DOHC, water-cooled Displacement 449cc Bore x Stroke 96.0 x 62.1mm Compression ratio 12.5:1 Fuel System DFI® with 44mm Keihin throttle body Ignition Digital CDI with electric start Transmission 5-speed, return shift Final Drive Chain Performance
Front Suspension / Wheel Travel 49mm inverted coil-spring telescopic fork with adjustable compression and rebound damping/12.0 in Rear Suspension / Wheel Travel New Uni-Trak® with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable preload/12.1 in Front Tire 80/100-21 Rear Tire 120/80-19 Front Brakes Single semi-floating 270mm Braking® petal disc with dual-piston caliper Rear Brakes Single 250mm Braking® petal disc with single-piston caliper Details
Frame Type Aluminum perimeter Rake / Trail 27.6°/4.8 in Overall Length 86.0 in Overall Width 32.7 in Overall Height 50.2 in Ground Clearance 13.4 in Seat Height 37.6 in Curb Weight 232.3 lb without fuel / 242.4 lb** Fuel Capacity 1.64 gal Wheelbase 58.5 in
By Bryan Bosch
POWER, TUNED TO PERFECTION
Same DNA as the class‑leading YZ450F, with a bigger fuel tank, electric start and power tuner smartphone app that lets you adjust your bike's settings to your specific style and conditions.
GNCC®/Hare Scrambles Focused Racer
All new for 2019, YZ450FX™ is based on Yamaha’s flagship motocross model—the YZ450F—with many added features and unique settings that make the YZ450FX the ultimate GNCC®/Woods racer.
Yamaha Power Tuner App
Yamaha’s exclusive Power Tuner app puts the flexibility and precision tunability of the GYTR® Power Tuner into your smartphone. Make fueling and ignition timing changes instantly and upload them to the bike via the onboard WiFi system for the ultimate in track-side tuning.
Electric Starter System
Utilizing a compact starter motor and ultra-lightweight lithium battery, the YZ450FX maintains the convenience of push-button starting, for effortless restarts under pressure, and relaxed riding when the clock isn’t ticking.
Potent Fuel-Injected Engine
A high-compression cylinder head, forged piston, aggressive cam profiles, cylinder geometry and much more work together to give YZ450FX riders the ideal power spread in challenging GNCC® racing conditions.
Advanced Alloy Frame
Yamaha’s bilateral beam aluminum frame features main spars, FX-specific engine mounts and an engine mounting position that centralizes mass and provides an ideal balance between cornering feel and straight-line confidence.
Yamaha uses KYB® spring-type forks on all of our YZ® models, with industry leading function and easy set-up at the track—these fork are ready for the top step of the podium straight out of the box.