TONNKA WEAPON LC135/Y15 RACING CAMSHAFT T1 T2 T3 T4

Tonnka Weapon Racing Camshaft is a performance camshaft for Yamaha Y15ZR and LC135 (135LC), built to increase valve lift and duration over the standard cam for stronger high-rpm breathing. Offered in four stages, T1 to T4, from a mild profile to a high-lift, long-duration race profile.

• Four selectable stages (T1-T4) for different tuning goals
• Increased intake and exhaust valve lift over stock
• Extended valve duration for improved high-rpm airflow
• Direct swap for the standard Y15ZR/LC135 camshaft

Brand

Tonnka Weapon

Product

Racing Camshaft

Model/SKU

T1 / T2 / T3 / T4

Type

Performance camshaft, 4-stage

Compatibility

Yamaha Y15ZR, Yamaha LC135 (135LC)

+ T1: Intake lift 8.3mm, Exhaust lift 8.4mm; Intake duration 258 deg (open 50/close 28); Exhaust duration 259 deg (open 29/close 50). Mildest profile. + T2: Intake lift 8.7mm, Exhaust lift 8.8mm; Intake duration 269 deg (open 54/close 35); Exhaust duration 267 deg (open 33/close 54). + T3: Intake lift 8.9mm, Exhaust lift 9.0mm; Intake duration 276 deg (open 37/close 59); Exhaust duration 273 deg (open 59/close 34). + T4: Intake lift 9.4mm, Exhaust lift 9.5mm; Intake duration 278 deg (open 34/close 64); Exhaust duration 276 deg (open 64/close 32). Highest stage, for built race engines. Higher stages need matching valve springs and a piston-to-valve clearance check by an experienced tuner.

Direct replacement for the stock camshaft; requires cylinder head removal, fitting by a qualified mechanic, and valve clearance rechecked after install. Package: 1x camshaft as selected.

Tonnka Weapon's T1-T4 racing camshafts let Y15ZR/LC135 owners pick a valve timing profile matched to their build, from mild street use to full race duration.