- A one tooth larger rear sprocket (49) made the engine feel snappier and eliminated engine stalling in slow corners with the engine lugging at low rpm.
- The Pirelli Mid-Soft 32 rear tire is engineered for use in softer dirt. It hooked up well in the soft stuff and even on hard pack however it wore out much faster than the 554 front.
- The Pirelli Mid-Hard 554 front tire is a “intermediate” terrain tire that is designed to work on a variety of terrain. We liked it for its wide profile, balanced carcass feel and above average levels of grip. It offered good durability, too.
- The Mid-Soft 32 rear tire offered great grip and feel but the knobs started to break off at around five hours of riding time.
- The Renthal gearing proves to be more durable than stock with the chain requiring less routine maintenance due to stretching.
- Replacing wear and tear components is a part of dirt bike ownership. We upgrade our Honda CRF450R with some hard parts from Pirelli and Renthal in this review.
- The larger 49-tooth sprocket prevented the CRF from stalling if you’re lugging the engine in a slower speed corner.
- The carcass of the updated Pirelli tires offers good rigidity balance and isn’t too hard nor soft.