Adventure-touring tires are usually rated in terms of their ratio of intended use on-road and off-road. Many are 90/10 tires, designed for roughly 90% on-road use and 10% off-road use, such as Continental’s ContiTrailAttack 3. They have large tread blocks and look more like sport-touring tires than the aggressive knobbies on tires like Continental’s popular Twinduro TKC80, which is rated 40% road/60% off-road. Road-biased adventure tires are smoother and grippier on pavement and deliver higher mileage than knobbier tires, but knobbies provide more traction off-road.
Between the two options is Continental’s TKC 70, which is rated 80/20 road/off-road. After putting 3,500 miles on the 90/10 Michelin Scorcher Adventure tires that came on my Harley-Davidson Pan America 1250 Special, I wanted something more aggressive for off-road riding. I opted for the TKC 70 front and rear-only TKC 70 Rocks, which is rated 60/40 road/off-road. With a little over 1,000 miles on the Continentals, they fit the bill.
Both tires feature zero-degree steel belt construction, which Continental says improves stability and comfort, and MultiGrip technology, which transitions from a harder, high-mileage center to a softer, grippier shoulder without the abrupt step from hard to soft with multi-compound tires. The TKC 70 front and TKC 70 Rocks rear have large tread lugs in the center that suppress the whirring road noise that can plague knobbier tires, and smaller lugs on the shoulder provide extra grip off-road.
Thanks to its prodigious power, the Pan America accelerates aggressively in sand and on dirt/gravel roads, and the Continentals dug in well, providing good grip in dry, low-traction conditions. Since it’s the dry season where I live in Southern California, I wasn’t able to test them in mud. But when contributor Arden Kysely tackled muddy trails in Colorado with TKC 70s on his BMW F 800 GS, he reported good performance.
On the highway, the TKC 70 and TKC 70 Rocks were quiet and composed with a little tendency to deflect in road grooves. On tight switchbacks and fast sweepers, the road-biased front and more aggressive rear paired well, offering predictable, stable handling all the way to the edge of the tread and minimal squirming on greasy tar snakes. The TKC 70 front felt especially compliant when navigating over sharp-edged features such as curbs and rocks embedded in the road surface. And even though I have pushed these tires hard, they are holding up well with minimal wear.
If you are looking for a solid tire pairing for your large adventure bike, the TKC 70 front and TKC 70 Rocks rear are worth considering. MSRP ranges from $148.50 to $243.50 for the TKC 70 front and from $259.10 to $314.80 for the TKC 70 Rocks rear.