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KENDADual-SportOff-Road

K257D Klassic

A knobby classic built for dirt-first riders — vintage machines, budget trail bikes, and dual-sport builds that spend most miles off pavement.

MTC7.8/10★★★★☆Dual-Sport · Off-Road Value
KENDA K257D Klassic motorcycle tiremotorcycletireco.com
BrandKENDA
TypeDual-Sport / Off-Road
FitmentFront & Rear
Sizes11
Dual-compound construction balances real dirt grip with extended tread life — you won't burn through knobs after one weekend
Aggressive knob geometry bites into sand, loose dirt, and hardpack for predictable traction on varied terrain
Bias-ply build plays well with vintage suspension geometry and the power delivery of classic two-strokes and air-cooled fours
Eleven size options spanning 14" to 21" wheels — covers small trail bikes up to full-size enduro machines
Load and speed ratings dialed in for trail, enduro, and dual-sport duty, not over-engineered for use cases it'll never see
Decades of field-proven tread design — this pattern has been sorted out long before most modern alternatives existed
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Select Size

Prices use MTC dealer formula · Load/speed index explained in the FAQ below

Fulfillment

Live pricing · Walk-in mount & balance available

Save below MSRPIn-stock · ships fastWalk-in install
MTC Rating
MTC Score
7.8/10
★★★★☆
Best suited for vintage restorers and recreational trail riders who want durable, honest off-road performance without paying for race-spec technology
Performance
Dry Grip8.2
Wet Grip7.4
Street Manners5.5
Track Capability6.8
Mileage8.1
Value8.6
Best For
Vintage Restorer
You're wrenching on a classic off-road or dual-sport machine from the 70s, 80s, or 90s and need a tire that fits the era without relying on crumbling old-stock rubber. The K257D gives you period-correct sizing, a tread pattern that looks the part, and modern compound reliability — no compromises on authenticity, no gamble on age-degraded grip.
Perfect Match
Budget Trail Rider
You ride weekends on fire roads, dirt trails, and moderate single-track on an older dual-sport or enduro bike. You want a tire that handles the mixed stuff without blowing your budget — the K257D's durability-first compound and competitive price point make it an easy call for riders who value miles-per-dollar over podium-spec grip.
Great Match
Modern Enduro Racer
If you're racing current-generation enduro or MX equipment and need the latest knob geometry, optimized compounds, and weight savings that justify a premium, the K257D isn't your tire. It's built for durability and value, not outright race performance — look at the Geomax MX33 or Starcross 5 instead.
Consider Dunlop Geomax MX33 or Michelin Starcross 5
Full Size Chart & Part Numbers
Pos.SizeLoad/SpeedP/NMFR Part #UPC-AOur Price / MSRP
FrontN/A—0312-0353042572136B0—$52.10$61.99Save $10
FrontN/A—0312-0351042571636B0—$42.00$49.99Save $8
FrontN/A—0312-0352042572136B0—$52.10$61.99Save $10
RearN/A—0313-0669042571852C0—$59.99$70.99Save $11
RearN/A—0313-0677042571838B0—$54.75$64.99Save $10
RearN/A—0313-0668042571852B0—$55.60$65.99Save $10
RearN/A—0313-0665042571452B0—$48.04$56.99Save $9
RearN/A—0313-0667042571764C0—$69.24$81.99Save $13
RearN/A—0313-0673042571864C0—$71.89$84.99Save $13
RearOOSN/A—0313-0671042571858C0—$71.89$84.99Save $13
Rear100/90-19—0313-0675042571906C0—$64.90$76.99Save $12
Frequently Asked
DOT certification on the K257D depends on the specific size — it's not blanket street-legal across the entire lineup. The knobby tread pattern is engineered for dirt, so on pavement expect real road noise and faster wear than any street-oriented tire. If your riding is more than 30% street, you'll be better served by a DOT-certified dual-sport option like the Dunlop D606 or IRC GP-110.
The K257D manages moderate mud and loose terrain well — it clears reasonably in sand and soft dirt, and the knob pattern does its job in most recreational conditions. That said, this isn't a dedicated intermediate or soft-terrain MX tire. In deep, clay-heavy mud, a modern tire with wider knob spacing and purpose-built self-cleaning geometry will outperform it. Know what terrain you're targeting before you buy.
Mixed-use riders typically see 1,500 to 2,500 miles before the knobs round out noticeably — terrain and riding aggression are the biggest variables. Rocky, technical riding wears them faster; fire roads and hardpack give you more life. The compound is tuned for durability over peak grip, so you'll get more miles than a race tire, though less than a street-oriented dual-sport.
It's physically doable, but mixing brands and tread patterns on off-road bikes can produce unpredictable handling — especially in loose or slippery conditions where each end responds differently. Kenda designed the K257D as a matched front-rear system. If you're mixing, at minimum make sure the other tire is also bias-ply construction with a similar intended-use profile.
Most XR and DR models from that decade ran 21-inch fronts and 18-inch rears. Typical fitments are 3.00-21 up front and 4.10-18 or 4.50-18 out back, though specifics vary by model year and displacement. Always cross-reference the OEM size stamped on your existing tire or check your owner's manual — rim widths varied across the production run.
The K257D is a bias-ply, tube-type tire — not tubeless-compatible. That's entirely standard for vintage and most off-road rim configurations. Mount it with a properly sized inner tube and confirm your rim is also tube-type. Using the right tube for your tire dimensions and valve stem preference keeps you out of trouble on the trail.

Kenda K257D Klassic Tires in Orange County — MTC

Motorcycle Tire Center in Orange, CA stocks the Kenda K257D Klassic for dual-sport and off-road riders throughout Orange County — from Anaheim and Fullerton to Irvine, Mission Viejo, Newport Beach, and Huntington Beach. If you're building or maintaining a vintage off-road machine and need a knobby tire that fits the era without sacrificing modern reliability, this is a straightforward answer. We carry it at below-MSRP dealer pricing and can walk-in mount it the same day you come in.

The K257D earns its keep as a value-first, durability-focused knobby across eleven sizes from 14" to 21". It's not trying to be a race tire — it's trying to be the right tire for trail riding, vintage builds, and budget-conscious dual-sport setups that spend real time in the dirt. Our mount and balance service runs $69 mount + $9.95 balance + $3.50 disposal per tire, with no appointment necessary for walk-in customers.

Have questions about sizing for your specific bike or whether the K257D is the right call versus a more street-capable dual-sport option? Call us directly at (714) 516-9059 — our staff knows these tires and will give you a straight answer based on how and where you actually ride, not just what's in stock.

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