Yamaha announced its 2021 YZ motocross lineup, including a redesigned YZ250F, and new Monster Energy Yamaha Racing Edition versions of the YZ250F and YZ450F.

Also returning for 2021 are the two-stroke YZ125 and YZ250, and the YZ85 and YZ65 youth models.

2021 Yamaha YZ250F

The 2021 YZ250F receives a new cylinder head with an updated intake port shape, revised exhaust camshaft profile, a new silencer and an updated ECU. Yamaha claims the changes produce strong mid- to top-end power and more peak power while producing strong low-end torque. The intake is all-new, with intake ducts added to the air box lid for added air flow. Yamaha also added a new high flow air filter and reshaped the air cleaner boot while increasing the diameter of the throttle body joint.

Yamaha revised the chassis, changing the lateral beams and engine cradle tube thickness to fine-tune rigidity balance. The engine mounts, top triple clamp and front axle were also modified for rigidity. Both the front and rear suspension received new damping settings, with Yamaha claiming improved cornering performance, traction and bump absorption. The brakes were also updated, with a more rigid front caliper, a more compact rear caliper, and new discs and pads.

Also receiving changes are the crankcase, cam chain and tensioner, water pump, clutch basket and gears 3, 4 and 5, all to improve overall durability.

2021 YZ450F and YZ250F Monster Energy Yamaha Racing Editions

The Monster Energy liveries are inspired by Yamaha’s championship-winning Supercross team.

Begin Press Release

Yamaha Announces Full Lineup of 2021 Motocross Bikes

Race like a Champion with Yamaha’s Redesigned YZ250F and Monster Energy® Yamaha Racing Editions

MARIETTA, Ga. – July 9, 2020 – Yamaha Motor Corporation, USA, introduces its complete lineup of race-ready 2021 motocross bikes including the updated YZ250F. Featuring a thoroughly refined engine, revised frame, new suspension settings and new brakes, the YZ250F continues to dominate the competition with the best balance of power and handling.

“The YZ250F is clearly the leader in its class, winning back-to-back Monster Energy AMA Supercross West Coast 250SX Championships, dominating media shootouts year after year, and by offering industry-exclusive features like the free Power Tuner app, which allows riders to wirelessly tune engine performance for changing track conditions,” said Derek Brooks, Yamaha Motorsports Motorcycle Product Line Manager. “For 2021 the YZ250F gets significant engine, frame, suspension and brake updates to deliver more class-leading power and offer a superior balance of nimble yet confidence-inspiring handling. Yamaha’s entire 2021 motocross lineup continues to raise the bar of competitive performance.”

Also new for 2021, the YZ250F and YZ450F will be offered in special Monster Energy Yamaha Racing Editions, pairing Yamaha’s legendary YZ performance with a new, race team-inspired aesthetic.

In addition to the updated YZ250F and the Monster Energy Racing Edition models, the full two-stroke lineup consisting of the YZ65, YZ85, YZ125 and YZ250, as well as the four-stroke YZ450F, all return for 2021 with the next-generation Team Yamaha Blue color and graphics scheme to further accentuate the advances of the YZ series.

Welcome to the victorYZone
Yamaha’s off-road competition bikes offer the very latest in technology with performance features designed to help racing enthusiasts reach their maximum potential, win races, and stand on top of the podium.

New 2021 YZ250F: Tune, Race, Win
The new 2021 Yamaha YZ250F has been redesigned for a more competitive, greater performing motocross experience. The new 250cc, liquid-cooled, four-stroke, electric start engine features an all-new cylinder head with an improved intake port shape and new camshaft profile, as well a new airbox and intake track, a new silencer, and an updated ECU. These modifications, along with other refinements like an updated transmission and shift cam, a revised clutch design and improved water pump impeller, all help to produce stronger mid- to top-end power and increased peak power, while retaining its class-leading low-end torque.

Tuned specifically for the 2021 YZ250F, the updated lightweight aluminum, bilateral beam frame, and new engine mounts have been redesigned with all-new flex characteristics to improve bump absorption, traction, and cornering performance. The industry-leading, fully adjustable KYB® coil spring-type fork, with enhanced speed-sensitive damping, provides an exceptional balance between comfort and bottoming resistance while the link-type rear suspension features a KYB shock with revised damping characteristics to match the updated chassis. Other chassis components such as the top triple clamp, handlebar mounts, and front axle were also redesigned to complement the new frame. Improved braking performance is achieved with newly engineered lighter weight front and rear brake calipers, larger surface area brake pads, and redesigned front (270mm) and rear (240mm) discs.

The 2021 YZ250F gives racers the edge right out of the gate. Standard equipment includes electric start, a lightweight lithium battery, advanced fuel injection, a front-positioned intake, and rear-positioned exhaust layout to deliver the widest spread of power with reliable performance while balancing the weight for excellent mass-centralization. Racers can adjust their engine performance straight from their phone using the onboard wireless connectivity through the industry’s only free-of-charge complete tuning system, which is highlighted by the Yamaha Power Tuner App. Once settings are dialed in, racers can then choose between two user-defined ECU maps on the fly via the handlebar mounted dual-mode engine map switch. Complemented by new next-generation Team Yamaha Blue color and graphics, the 2021 YZ250F showcases Yamaha’s race-winning pedigree.

The new 2021 YZ250F will be available from dealers this September in next-generation Team Yamaha Blue for $8,299 MSRP. The Monster Energy Yamaha Racing Edition will be available from dealers in September for $8,499 MSRP.

New for 2021: Monster Energy Yamaha Racing Editions
Stand out from the crowd. The 2021 YZ250F and 2021 YZ450F now come in new Monster Energy Yamaha Racing Editions. With a factory team-inspired color and graphics package, riders can feel as if they too are part of a Yamaha championship-winning Supercross team.

2021 YZ450F: Tune into Victory
The 2021 YZ450F returns with all of the class-leading features first introduced on the 2020 YZ450F, including an updated engine, cylinder head, frame and technology features for a more powerful and better handling motocross experience. Racers can achieve quicker, smoother race starts through Yamaha’s Launch Control System, adjust their on-track performance using the onboard wireless connectivity through the free-of-charge Yamaha Power Tuner App right from their phone, and choose between two user-defined ECU maps on the fly through the handlebar-mounted dual-mode engine map switch.

The 2021 YZ450F will be available from dealers this month in next-generation Team Yamaha Blue for $9,399 MSRP. The Monster Energy Yamaha Racing Edition will be available from dealers in August for $9,599 MSRP.

2021 YZ125 and YZ250
Yamaha’s YZ125 and YZ250 models return for 2021 to complete Yamaha’s full-size lineup of motocross bikes. With their modern styling, lightweight aluminum frame and industry-leading KYB Speed Sensitive System front forks and KYB fully-adjustable rear shock, the 2021 YZ125 and YZ250 continue their outstanding performance and durability with a rider-friendly chassis and race-ready features.

The 2021 YZ125 will begin arriving at Yamaha dealerships in August, while the YZ250 will be available from dealers this month. Both models will be available in next-generation Team Yamaha Blue for $6,599 and $7,499 MSRP, respectively.

2021 YZ65 and YZ85
The 2021 youth models are once again ready to tackle the track. The YZ65 and YZ85 are powered by confidence-inspiring 65cc and 85cc two-stroke engines. Featuring the Yamaha Power Valve System, these engines deliver a broad spread of power and torque across the entire rev range, without losing any power at high RPM. Fully adjustable, industry-leading 36mm KYB spring type forks and KYB rear shock contribute to class-leading handling and performance in a wide range of conditions. Four-way, adjustable handlebar positioning, as well as lever-reach adjustability are designed for ultimate rider comfort, regardless of size. Finally, with two-stroke ease of maintenance and Yamaha’s proven durability, the 2021 YZ65 and YZ85 are built to keep kids on the track.

The 2021 YZ65 and YZ85 will both be available from dealers this month in next-generation Team Yamaha Blue for $4,599 and $4,699 MSRP, respectively.

Yamaha bLU cRU Off-Road Racing Contingency Program
All 2021 YZ models are eligible for Yamaha’s current 2020 bLU cRU Off-Road Racing Contingency Program, which features nearly $5 million for Yamaha bLU cRU riders competing in off-road motorcycle racing. YZ riders can earn contingency payouts via a bLU cRU debit card, receive a 10 percent rebate on GYTR parts and accessory purchases of up to $1,000, and receive an instant $45 credit on http://www.bLUcRUswag.com. The 2021 bLU cRU Off-Road Racing Contingency Program details will be announced soon.

For complete details on how to register for the bLU cRU Off-Road Racing Contingency Program, along with specific information on which racing series, events, and classes are included, visit the Off-Road Racing Contingency page on the Yamaha Motor Corporation, USA, website at:
https://www.yamahamotorsports.com/motocross/pages/yamaha-off-road-contingency-program.

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What’s more opprressed than the 2-stroke? Show your solidarity by riding out on this one from boutique British bike outlet Langen Motorcycles. You’re only supposed to ride it on closed courses, of course, but… It’s powered by a 90-degree Vins two-stroke twin, with twin counter-rotating crankshafts. Read all about it at Langen Motorcycles.

Vins?

Vins is an Italian company founded by ex-Ferrari people that builds Duecinquanta (sounds exotic but means “250”) racebikes. In an intereview here, CEO Vincenzo Mattia, explains “the particularity of our engine. “

“Our Vins engine is capable, in standard configuration, of delivering 75 hp at 11,500 rpm. It looks like a brutal engine, difficult to use, but thanks to the electronic control and the management of the exhaust valves, we manage to manage the engine’s delivery arc within very high torque values ​​at the bottom without excessively compensating the delivery. “

What, there’s a street version? Vins further states: “Thanks to the management of the patented lubrication, the Duecinquanta Strada has passed the UK homologation test at full power, without the need to install any type of catalyst. The Vins Duecinquanta is therefore an ambitious motorcycle capable of concentrating innovation and tradition for a super light and performing road sports car, also optimized for oil consumption by bypassing the pollution system.”

I wonder if Indian is working on one? We’re not getting any younger.

The post Langen Motorcycles 2-Stroke appeared first on Motorcycle.com News.

You may know Christini from its all-wheel-drive dirtbikes, or perhaps you knew they made two-wheel-drive bicycles too. Well, now the company is entering the burgeoning e-bike sector.

Begin Press Release: 

CHRISTINI AWD LAUNCHES E-BIKE SERIES OF PRODUCTS

All-Wheel Drive Off-Road E-Bicycles to be Manufactured in USA by Christini AWD

Philadelphia, Pennsylvania — CHRISTINI AWD is launching a new generation of All-Wheel Drive bicycles utilizing the same revolutionary technology that has been providing traction and control benefits to off-road riders for years. But now these remarkable pedal-driven machines will have a high power electric-assist mid-drive motor to launch them over slippery rocks and wet roots like no other single, rear-wheel driven e-bicycle. Available in a 27.5” hardtail and several FAT tired models, these electric-assist mountain bicycles provide the ultimate in traction control allowing a rider to conquer conditions most thought to be un-rideable. The added benefits will dramatically extend ride length and climbing capabilities. Customers will be able to ride miles further and climb hills never before summited!

Inventor and entrepreneur, Steve Christini, announced this week he is looking to offer his unique machines via a select dealer network which understands the added performance a second-driven wheel provides to an e-bicycle. “E-bikes are taking over the world because they provide an off-road riding experience to a wider demographic than ever before. With AWD (all-wheel drive) added to that mix, riders will gain a go-anywhere level of confidence never available until now.”

Christini AWD Bicycles incorporate a mid-drive Bafang 1500W motor with torque sensing pedal-assist abilities all for under $5600 MSRP. These bikes are appropriately balanced – and offer a true mountain bike experience – without the burden of heavy hub motors found on some other 2WD utility bikes.

AWD Hardtail Plus Specs

• Frame 6061 T6 aluminum
• MRP Raven Air 35mm fork
• 1500W Bafang mid-drive motor with color-display and torque sensing
• 27.5” Sun Ringle rims with Wheelsmith spokes
• Quality SRAM cassette, shifter, derailleur, brakes, calipers, rotors & levers
• Weight: 49 pounds

MSRP: $5595

See www.christinibicycles.com for more information.

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