Top Racing crankshaft Yamaha DT 125, year 99-06, DTR/TZR 125, KTM LC2 125

The solid-cheek crankshaft from Top Racing (Jasil) is designed as a reinforced replacement crankshaft for 125cc two-stroke engines and is aimed at riders who value stability and smooth engine running. The solid-cheek design improves pre-compression in the crankcase, which has a positive effect on the running characteristics and durability of the engine.

The crankshaft corresponds to the original dimensions in terms of stroke and connecting rod length, making it ideal as a high-quality replacement during engine overhaul. It is intended exclusively for kick-start models without electric starters and only fits engines with engine numbers beginning with "3MB". Precise manufacturing ensures smooth running even at higher speeds, making the crankshaft interesting for both series production and stable setups.

Technical data

• Manufacturer: Top Racing (Jasil)
• Jasil number: 6030096
• Design: Full-cheek crankshaft
• Needle bearings: 16 × 21 × 19.6 mm
• Stroke: 50.7 mm (standard)
• Connecting rod length: 105 mm (standard)
• Crankshaft stub diameter (clutch & alternator side): 25 mm
• Width of groove/bearing surface on right side: 25.35 mm
• Length of left crankshaft journal: 63 mm
• Length of right crankshaft journal: 59.5 mm
• Total width of crank webs: 57.8 mm

Compatibility

• Yamaha DT 125 R (1999–2003, DE03)
• Yamaha DT 125 R (2004–2006, DE061)
• Yamaha DTR 125
• Yamaha TZR 125
• KTM LC2 125

Important note: Only for kick-start models without electric starter and engine numbers beginning with "3MB".

Scope of delivery

• 1× Full-cheek crankshaft Top Racing (Jasil)