

⚙️ Keep your Harley’s heart running smooth — because every ride deserves premium care!
Motor Factory’s High Performance Primary Chaincase Lube is a 1-litre mineral oil lubricant designed exclusively for Harley-Davidson VTwin motorcycles. Engineered to protect the primary chain and clutch assembly, it excels in extreme temperatures to extend clutch life and prevent premature wear, earning a 4.8-star rating from riders who demand reliability and smooth clutch engagement on every ride.
| ASIN | B002QV4XGS |
| Best Sellers Rank | 95,176 in Automotive ( See Top 100 in Automotive ) 147 in Motorbike Engine Oils |
| Brand | Motor Factory |
| Customer Reviews | 4.8 4.8 out of 5 stars (15) |
| Date First Available | 24 May 2015 |
| Item Weight | 998 g |
| Manufacturer | Motor Factory |
| Manufacturer part number | 921256 |
| Manufacturer reference | 921256 |
| Product Dimensions | 38 x 29.01 x 15.01 cm; 997.9 g |
| Viscosity | 50 |
J**E
Mineral Oil - Used in primary
Used in primary, on softail intial testing no clatter/noise Was a hot day (26c) and primary was hot (after 2h:30m non stop riding) but not excessive , clutch didn't drag and disengaged freely cold and hot. . Intend on doing more regular changes than recommended service minimum so happy to use mineral oil in primary. Will be using different Fully synthetic in transmission to reduce the 'Harley clunk'..(Hopefully)..
J**.
Good quality oil
I Always use Motor Factory primary oil in my harley and have never had a problem with it so if it ain't broke don't mend it.Good quality oil.
A**R
Four Stars
spot on
L**D
Gear changes much better now.
Had an egg cup full of oil when I drained it. Gear changes much better now.
A**R
Five Stars
good
T**H
Five Stars
great product
K**R
Five Stars
it is what it says on the bottle
M**N
Five Stars
Just what l was looking for thanks
Trustpilot
2 months ago
2 days ago