Spring shock damper ROLLER-SCHUPFEN, primary, T5R

for Lambretta 125 LI/
IS/
L/
P/
50 LI/
IS/
X/
L/
P/
75 TV 2
-3
/
00 TV/
X/
L/
P
Grade AA – first-class repair
Product description
Reinforced spring preventing engine jolts on the front chain cog in Lambretta engine transmissions.
The Lambretta front sprocket cog is situated using a special spring. This prevents excessive jolts and shocks being transmitted between the crank and gearbox. These springs are pushed to the limit of their abilities in tuned engines, leading to unabsorbed shocks and jolts damaging or breaking them.
Reinforced
Bead blasted
Activated
The TSR spring has a rating of 252 N/mm, instead of the 110-150 N/mm of the ORIGINAL spring. They are produced using reinforced, drawn wire, coiled for the highest static and dynamic loads. The wires surface is bead blasted. This secures and seals the surface area. As the surface of a spring is placed under the most load, the bead blasting process leads to an improved durability. To avoid the spring losing any tension while first being activated and sagging once installed, these springs are pre-activated during production. This ensures constant and lasting pressure from the spring.
The developer:

This special spring was conceived and developed by Rainer
Up till his tragic death he was considered a technical instance in the world of Lambretta scooters. Always helpful and friendly, he shared his knowledge with everyone and also did not mind getting his hands dirty in other peoples engines when needed. Friends and associates are continuing with his legacy of innovative products.
Conclusion
: A small and often ignored component, essential for improving the reliability of tuned Lambretta scooters.
The best set up – our