Continental IceContact 8: Vulcanized Stud Attachment Enhances Winter Traction
The Continental IceContact 8 tire combines two types of studs, a chemical bond between the stud and the rubber, and a tread pattern that stabilizes the studs. According to the manufacturer, the A+-rated tire-stud combination meets the stricter road wear requirements for passenger car tires to be manufactured starting in 2027.
The stud attachment on the IceContact 8 is finalized through vulcanization after studding. The chemical bond formed between the stud coating and the surrounding rubber reduces stud movement and prevents contaminants from entering the stud socket. Continental’s patented mounting solution is complemented by large, rigid tread blocks that support the stud and limit its tilt under load.
Two Tikka studs for different load directions
The tire uses studs manufactured in Tikkakoski. The differently sized edges of the acceleration and braking studs enhance longitudinal grip. The asymmetrical stud, which provides lateral grip, is mounted at a 12-degree angle relative to the tire’s direction of travel.
The stud tip has been made smaller and the shank lengthened. At Continental’s October press conference, it was announced that the number of studs has also been increased in most tire sizes
The Tikka Alu 258 and 259 are listed as stud models in Traficom’s approval list. The IceContact 8 model has been granted both A and A+ approvals, so the approval version for each individual product must be checked separately.
A+ tightens the road wear limit values
In Traficom’s A+ phase, road wear limits are reduced by approximately 15 percent. The approval limit is determined based on the tire’s load index, and the requirements apply to the tire-stud combination as a whole. The change does not require the replacement of previously approved tires currently in use.
Stud attachment in a practical test
Continental Rengas Oy’s 2026 Winter Tire Roadshow toured Jyväskylä, Lempäälä, Vantaa, Espoo, and Raisio. The consumer-focused program combined tire technology presentations, raffles, and stud installation demonstrations, where visitors could compare the installation of vulcanized and traditional studs.
A press breakfast held at Jumbo in Vantaa also covered A+ requirements, sustainability, and Norstat’s winter tire survey. Valentina Ahlavuo, editor-in-chief of Automediat.com, tried removing a stud during the traction demo. The gauge showed a pulling force equivalent to 64 kilograms, or approximately 628 newtons. This single demonstration illustrated the strength of vulcanized stud attachment.
