Decha Performance HR High Rev Camshaft | Honda Grom & Monkey 2014–2020 Performance Upgrade

Unlock strong mid-to-top-end power gains with the Decha Performance HR “High Rev” Camshaft for the 2014–2020 Honda Grom and Monkey. Designed to outperform the stock camshaft across a wide range of builds — from bone-stock bikes to high-compression and big bore setups — this is one of the most effective bolt-on performance upgrades available for the OG Grom, SF Grom, and 1st Gen Monkey.

The HR cam profile is engineered for strong mid and top-end performance while maintaining proper tappet clearance and low operating noise. A tapered small-end bearing makes installation straightforward, and hardened construction ensures long-term reliability under high-rev conditions.

Valve Clearance Setting: Set intake and exhaust valves to .003" on both sides.

Specifications:

• Brand: Decha Performance
• Model: HR (High Rev)
• Weight: 0.3 lbs
• Fitment: Honda Grom (OG / SF) & Honda Monkey (1st Gen) — 2014–2020

Key Features:

• Strong mid and top-end cam profile for noticeable power gains over stock
• Compatible with stock, high-compression, and big bore builds
• Adequate base circle diameter for proper tappet adjustment and quiet operation
• Tapered small-end bearing for easy, hassle-free installation
• Hardened construction for durability and long-term reliability at high RPM