Cycle Repairing and Adjusting
With a Chapter on building a Bicycle from a Set of Parts

44 CYCLE REPAIRING rubber will make from § pt. to 1 pt. of solution, so not more than 1 pt. of the solvent will be necessary. Keep the bottle in a warm (not hot) place, and add more solvent as required until the solution becomes a thick syrup. The rubber will swell up when placed in the solvent. The cyclist’s ordinary tyre-repairing outfit includes a tube of rubber solution, french chalk, a piece of canvas or Fig. 31.—Reflex-Clipper Fig. 32.—Reflex-Clipper Wired-edge Tyre Beaded-edge Tyre fabric, glasspaper, valve rubber (tubing), and sheet rubber for patching the punctured tube. Such an outfit can be purchased from any cycle repairer or stores, and ranges in price from twopence upwards ; but a better and far cheaper plan is to buy the articles separately, especially if an old tube is available for use as patching rubber ; cut up the tube at the seam, and then into round patches of various sizes. Testing Quality of Rubber in Tyres.—The use of tyres made of inferior rubber is the cause of a great deal