The Challenger 4.5 Rollers use the same 4.5 machined aluminum drum cylinder as the Alloy 4.5 Rollers, but use Poly end caps for a more economical option
- Combines the Killer Kool Headwind Fan with the Challenger 4.5 Rollers - 4.5 x 15 Alloy Drums with Poly End Caps - Standard Kreitler Frame - Belt -Part KT-10000