Abstract: A brake block for a rim brake assembly of a bicycle which has a wheel rim. The brake block comprises an elongated body member of frictional material and has a face with cavities therein. The body has a longitudinal hole extending from end to end therein. Narrow holes or porous inserts connect the longitudinal hole with the face surface and the cavities.

Abstract: A bike traction attachment comprised of two identical side bands, between the bands are cleats secured at equal intervals around the bands' circumferences. Two hook-eyelet assemblies are incorporated as well, whereby, the side bands' ends can be secured together. And thereby, the traction attachment can be secured onto a tire of a bike.

Abstract: An inflatable balloon mounted on a hub having pinwheel vanes attached thereto. The device is suspended by a string and may be attached to a moving vehicle or held by hand for free rotation of the pinwheel and the balloon.

Abstract: This accessory comprises a mounting assembly and a handle assembly. The mounting assembly can be mounted and secure upon a bike's handlebar, and it can be rotated in a complete circle around the handlebar, if necessary. The handle assembly can be rotated in a complete circle and can be moved up or down, within the mounting-unit. Thereby, this handle assembly will have movements in all directions, upon a bike's handlebar. And it can be folded down close and parallel to the handlebar, when not in use.