Belts and Pullys

Performance The M7 Speed 4% oversize - speed increasing crankshaft pulley will add power, acceleration and performance to your MINI.  Speeding up your supercharger safely adds "low end" boost and torque which gets your MINI Cooper going. Weighing...

Power Up Supercharger Overdrive Kit Includes Choose from 20% or 16% total overdrive options 20% Total Overdrive for Optium Performance M7 Speed 16% Overdrive supercharger pulley M7 Speed 4% Lightweight Overdrive crank pulley  16% Total Overdrive...

The M7 Speed lightweight crankshaft pulley will add power, acceleration and performance to your MINI. The lightweight crank pulley reduces crankshaft rotational mass which equals additional increased horsepower, torque and throttle response.DesignThis...

When M7 Speed was looking to add a supercharger pulley to our existing product offering, we realized that it had to be better and have that M7 advanced engineering and mindset. The M7 supercharger 16% speed increasing pulley will add low end power,...

High strength and superior quality ARP Bolt and hardened washer. Fits all Gen 1 MINI Cooper Crank Pulleys including the M7 Ultra Light weight Pulley.

When using the M7 Speed lightweight 4% crank pulley with the stock (non-JCW) Supercharger pulley together, it is necessary to use a longer drive belt. M7 Speed offers a correct length high performance drive belt that works perfectly with 4% crank &...

When using the M7 Tuning 4% Crank pulley and 16% Supercharger pulley together, it is necessary to use a shorter drive belt or risk slipping or throwing the stock belt. M7 Speed offers a correct length high performance drive belt that works perfectly with...

This is a new 1436mm long Micro-V drive belt. This belt is recommended for use with the SPRINTEX Supercharger kit with the following drive pulley combinations. CRANK PULLEY       SUPERCHARGER PULLEY 2% Overdrive     ...

This is a new 1429mm long Micro-V drive belt. This belt is recommended for use with the SPRINTEX Supercharger kit with the following drive pulley combinations. CRANK PULLEY       SUPERCHARGER PULLEY Stock        ...

This is a new 1423mm long Micro-V drive belt. This belt is recommended for use with the SPRINTEX Supercharger kit with the following drive pulley combinations. CRANK PULLEY       SUPERCHARGER PULLEY Stock        ...

This is a new 1353mm long Micro-V drive belt one step shorter than our baseline recommended length of 1353mm.  This belt is for use with the M7 Speed Supercharger 16% pulley and stock crank pulley. The reduced length of this belt adds additional...

When using the M7 Speed 2% Crank pulley with the stock (non-JCW) Supercharger pulley together, it is necessary to use a longer drive belt. M7 Speed offers a correct length high performance drive belt that works perfectly with 2% crank & stock SC...

When using the Stock Crank Pulley or the M7 Tuning 2% Crank pulley and 16% Supercharger pulley together, it is recommended to use a shorter drive belt or risk slipping or throwing the stock belt. M7 Tuning now offers a shorter-than-stock high performance...

DAYCO® NO SLACK® AUTOMATIC BELT TENSIONER Belt slippage is one of the main reasons your Gen 1 Supercharged MINI looses performance as time goes on. The supercharger is driven by the one drive belt.  If the tension on the belt...

Direct replacement for the stock (non-JCW) crankshaft & supercharger pulley set-up. 1404mm long. Note: Belts supplied are from various name brand manufacturers based on availability. Download our Drivebelt Recommendation Chart for more...