Single-chamber shock absorber, gas pressurized (Nitrogen), with floating piston separator. Specific calibration for each scooter model.
The double spring system ensures initial comfort and at the same time a progression of forces that ensures maximum functionality on uneven surfaces.
YXB 51 is the version with a longer wheelbase than the original. Depending on the application (type of scooter) YXB are in the following versions: 01 red spring, for vehicles with a sporty look - 02 black spring, more suitable for classic scooters.
TECHNICAL FEATURES Shock absorber body and stem in treated high-strength steel, upper and lower heads, and external tank in aluminum alloy machined from solid with CNC machining.
ADJUSTMENTS
| Spring preload | continuous |
INCLUDED IN THE PACKAGE: Model-specific assembly instructions, and a tool for adjusting the spring preload.
| Brands | Displacement | Model | Year | Type |
| PIAGGIO | 125 | VESPA LX PRIMAVERA 125 4T 3V | 2013-2017 | M81100 |
| PIAGGIO | 125 | VESPA PRIM 125 4T 3V IE ABS E5 | 2020-2021 | MD1A (MD1100) |
| PIAGGIO | 125 | VESPA PRIM. 4T 3V E4 IGET ABS | 2016-2020 | MA1100 (MA1A) |
| PIAGGIO | 150 | VESPA PRIM. 4T 3V IGET ABS | 2016-2020 | MA1200 (MA1B) |
| PIAGGIO | 150 | VESPA PRIMAVERA 150 4T 3V/ABS | 2013-2016 | M81200/01 |
| PIAGGIO | 150 | VESPA PRIMAVERA 150 E5 | 2020-> | MD12M |
| PIAGGIO | 150 | VESPA PRIMAVERA 4T 3V - ASIA | 2014-2014 | RP8M82200 |
| PIAGGIO | 125 | VESPA PRIMAVERA 4T 3V IE- ASIA | 2014-2014 | RP8M82100 |
| PIAGGIO | 125 | VESPA SPRINT 125 3V IE ABS E5 | 2020-2020 | MD1A (MD1101) |
| PIAGGIO | 150 | VESPA SPRINT 150 4T 3V IE ABS | 2015-2015 | M81401 |
| PIAGGIO | 125 | VESPA SPRINT 4T 3V IE | 2014-2015 | M81300/01 |
| PIAGGIO | 125 | VESPA SPRINT 4T 3V IE - ASIA | 2014-2015 | RP8M82211 |
| PIAGGIO | 125 | VESPA SPRINT IGET 4T 3V ABS | 2016-2020 | MA1300 (MA1A) |
| PIAGGIO | 150 | VESPA SPRINT S. 4T 3V IGET ABS | 2016-2020 | MA1400 (MA1B) |
| PIAGGIO | 150 | VESPA SPRINT SPORT 150 ABS E5 | 2020-2020 | M12M |