Quick, easy strap for your Ion lights Quick, easy strap for your Ion lights. Genuine replacement parts Genuine replacement parts When it's time to refresh your trusty light, Trek Genuine Replacement Parts have got you covered. When it's time to refresh your trusty light, Trek Genuine Replacement Parts have you covered. - Fits all Ion headlights Fits all Ion headlights - Works best with 22.2-35.0 mm handlebars Works best with 22.2 - 35.0mm handlebars
