BBR HD Shock Spring - CRF70 tbw0413 #42 and #45 Pilot Jets

#42 and #45 Pilot Jets

The clamps and stem are machined from aerospace aluminum right here in the USA

This kit is also recommended for use only with big valve heads such as the common Lifan head with 27/23mm valves or our Import Race Head with 30/23

Lightweight fabrics equipped for a heavy workload

The valves and ports are big

BBR HD Shock Spring - CRF70 tbw0413 #42 and #45 Pilot JetsBBR Shock Spring Heavy Duty, CRF70 & XR70 Custom developed by BBR Motorsports for the ultimate upgrade for mini four strokes. Sized perfectly for fast aggressive adult mini riders. 40% stiffer than stock Preset and stress relieved for long life Custom wound from aircraft quality spring steel Powder coated finish Fits stock rear shocks on CRF70 & XR70