K657 Challenger
Live pricing & every size below · full buyer’s guide coming soon.
motorcycletireco.comPrices use MTC dealer formula · Load/speed index explained in the FAQ below
Live pricing · Walk-in mount & balance available
🛞 Running a spoked wheel? Parts Unlimited Standard Tubes fit 110/90-19 — from $8 →| Pos. | Size | Load/Speed | P/N | MFR Part # | UPC-A | Our Price / MSRP |
|---|---|---|---|---|---|---|
| FrontOOS | 110/90-19 | — | K65710 | 046571910C1 | — | $87.04$102.95Save $16 |
| Front | 130/90-16 | — | K6581 | 046571618C1 | — | $104.81$123.95Save $19 |
| Front | 90/100-21 | — | K6582 | 046572104C1 | — | $83.66$98.95Save $15 |
| Rear | 130/90-15 | — | K6570 | 046571514C1 | — | $98.04$115.95Save $18 |
| Rear | 130/90-16 | — | K6571 | 046571614C1 | — | $104.81$123.95Save $19 |
| Rear | 130/90-18 | — | K6576 | 046571814C1 | — | $102.21$120.95Save $19 |
| RearOOS | 140/90-16 | — | K6579 | 046571616C1 | — | $110.73$130.95Save $20 |

Kenda's evolved all-terrain ATV tire built for riders who push hardpack, loose dirt, and mixed conditions without swapping rubber.
Kenda's evolved all-terrain ATV tire built for riders who push hardpack, loose dirt, and mixed conditions without swapping rubber.
The K592 Bearclaw EVO is the go-to all-terrain ATV tire for riders who cover mixed ground and need durability and grip over specialization.

A sand-and-mud specialist built for desert racers and hare scrambles competitors who need instant hookup and aggressive self-cleaning in the softest conditions.
A sand-and-mud specialist built for desert racers and hare scrambles competitors who need instant hookup and aggressive self-cleaning in the softest conditions.
Built for desert racers and soft-terrain competitors who need aggressive self-cleaning traction — not a street tire by any measure.

FIM-approved hard enduro front tire built for technical off-road riding — the go-to choice for dual-sport and trail riders who need real dirt performance.
FIM-approved hard enduro front tire built for technical off-road riding — the go-to choice for dual-sport and trail riders who need real dirt performance.
Best suited for hard enduro and technical trail riders who occasionally connect routes on pavement and want FIM-level construction at an honest price point.

Race-compound ATV sport tire built for club competitors and hard-charging quad riders who need podium-ready grip without burning through a tire every few weekends.
Race-compound ATV sport tire built for club competitors and hard-charging quad riders who need podium-ready grip without burning through a tire every few weekends.
Best suited for club-level ATV racers and aggressive sport quad riders who want a durable race tire that performs on both practice days and race day without constant replacement.

A competition-grade Endurocross tire built for riders who demand maximum traction in technical, obstacle-laden terrain — not for the street.
A competition-grade Endurocross tire built for riders who demand maximum traction in technical, obstacle-laden terrain — not for the street.
The Ibex is built for serious Endurocross and extreme enduro competitors who need every ounce of wet grip and terrain compliance and accept a short service life in exchange

A hard-working intermediate motocross tire built for riders who live between the track and the trail — tough, versatile, and priced to ride.
A hard-working intermediate motocross tire built for riders who live between the track and the trail — tough, versatile, and priced to ride.
The K775 Washougal II is the go-to choice for motocross and trail riders who need a durable, do-it-all tire that performs consistently on mixed terrain without breaking the bank.

A purpose-built motocross tire engineered for soft-to-intermediate terrain — serious traction and durability without the flagship price tag.
A purpose-built motocross tire engineered for soft-to-intermediate terrain — serious traction and durability without the flagship price tag.
Best suited for amateur and practice-level motocross riders who want reliable soft-to-intermediate traction and above-average wear life at a competitive price point.