The CeramicSpeed OSPW system is engineered to optimize your rear derailleur's efficiency
Its sleek black finish complements any aggressive mountain bike setup while resisting dirt and debris for long-lasting durability
it delivers a balanced combination of sturdy build and nimble handling
Crafted from premium 4130 Chromoly steel
this drum brake offers enhanced heat dissipation and improved braking response
Onza Porcupine 29" Mountain Bike Tire - Tubeless, All-Mountain Traction PSI_120psi The CeramicSpeed OSPW system isExperience Unmatched All Mountain Performance with the Onza Porcupine Tire 29" x 2. 40" White Designed for serious riders seeking versatility, durability, and exceptional grip, the Onza Porcupine Tire is your ultimate all condition mountain biking tire. Crafted with premium materials and innovative engineering, this tire excels across diverse terrains, making it perfect for trail riding, enduro, downhill, and even rear E bike applications. Materials &