Topeak Uni Super Tourist Black Luggage Rack. For 24” – 29” and 700C wheels This one-size-fits-all aluminum tubular rear rack is equipped with adjustable legs to fit most MTB and 700C touring bikes with 24” to 29” wheels. This durable tubular luggage rack is designed for running errands around town or long-distance trips. The MTX QuickTrack Plate is compatible with any Topeak MTX TrunkBag, MTX Rear Basket, and most other backpacks and panniers on the market.