User manual BONTRAGER TUBULAR WHEEL SETUP

[. . . ] Tubular Wheel Setup ENGLISH Tubular Wheel Setup This is a multi-day procedure. On following days, you apply layers of glue that must completely dry (usually each layer dries for a full day) as you prepare the rim and mount the tire. Preparing the Tubular Rim If you are gluing a tire onto a rim that was previously prepared, scrape off as much old/loose glue as possible and continue on as if it was a new rim (Figure 20). Starting at the rim's valve hole, lightly sand the surface of the entire tire bed with 120 grit. [. . . ] You may want to repeat this for practive because after there is glue on the tire, you only get one chance! 2 3 Applying the First Layer of Glue Follow the glue manufacturer's installation instructions for using their glue, especially suggested drying times. The first layer of glue on the rim must be very thin and allowed to dry fully (usually around 24 hours). This first layer is the foundation of the correct attachment of a tubular tire. WIth the acid brush, apply a thin layer of glue to the rim's tire bed, edge to edge, all the way around the rim (Figure 22). Inflate the tire just until it rolls over and the base tape is exposed (Figure 23). Allow the glue to completely dry. Attaching the Tubular Tire to the Rim Tighten the removeable valve core before gluing the tubular on the rim. To reduce the chance of noise, prior to this procedure wrap a layer of electrical tape around the valve stem or apply a drop of glue on the side of the valve stem. As this process nears completion, it is important to work quickly before the glue dries. Deflate the tire and place the valve stem into the rim's valve core. WIth your hands at the right and left of the valve, grasp the tread and sidewall of the tire and press down as you work the tire onto the rim bead (Figure 24 and 25). Applying the Second Layer of Glue 1. Inflate the tire just until it rolls over and the base tape is exposed. Allow the glue to completely dry. Figure 24. Figure 25. Figure 22. Continue working down the tire, pressing it into rim until there are only a few inches of the tire remaining outside the rim bead (Figure 26). Pick up the wheel and slide the tire on the remaining few inches by pushing with your thumbs (Figure 27). [. . . ] With the tire deflated, roll the tire slightly to check that the tire is adhered up to the edge of the tire well. Note: You should occasionally check the adhesion of the tire to the rim to ensure the glue is still holding. Figure 26. Figure 27. 6 7 Bontrager tires and wheels are warranted to be free of defects in materials and workmanship. For details, visit www. bontrager. com or a dealer near you. www. bontrager. com [. . . ]