Aprilia RS 660 YSS TDS Shock Absorber (20-25)
The new TDS (Track Day Shock) series of motorcycle shock absorbers from YSS have been developed with one thing in mind - to go as fast as possible around a circuit, whether you're a track day specialist or a racer.
Although YSS are fairly new to the track day/race market, bikes fitted with their products are already turning heads in many paddocks around the world, winning championships in Europe and New Zealand on the latest and greatest 1000cc superbikes and the smaller 400/250cc bikes. Considering that YSS are the the worlds largest aftermarket motorcycle shock absorber manufacturer and have been in the game for 40 years, it's no surprise that they appear to be getting it right first time with their latest range of shock absorbers.
Over and their standard MG456 and MU456 shock absorbers, aimed more at road biased bikes, the TDS series shocks benefit from the following...
- Redesigned seal head
- Modified spring/spring rates
- Improved compression valves
- Improved valving settings and specifications
In terms of overall spec and adjustability, these shocks have got the lot, including...
- 45mm shock body
- 16mm piston rod
- 30 clicks high & low speed compression adjustment
- 30 clicks rebound adjustment
- Length adjustment (on most models)
- Integrated hydraulic preload adjustment
- High quality milled aluminium components for less weight and added durability
Please see the specification tab for more detailed information.
All YSS shock absorbers are covered by a two-year manufacturer’s warranty.
We have the full range of YSS TDS Shocks so be sure to check if there's one available for your bike.
| Brand | YSS |
|---|---|
| Shock Length (mm) | 407.05 |
| Shock Top Mount Type | Eye |
| Shock Top Mount Width (mm) | 30.20 |
| Shock Top Mount Bolt Hole (mm) | 13.13 |
| Shock Bottom Mount Type | Eye |
| Shock Bottom Mount Width (mm) | 30.20 |
| Shock Bottom Mount Bolt Hole (mm) | 13.13 |
| Shock Absorber Spring Internal Diameter (mm) | 73.53 |
| Shock Absorber Spring Length (mm) | 170.70 |
| Shock Spring Rate (n/mm) | 120 |
| Shock Preload Adjustment | Hydraulic (Hose) |
| Shock Rebound Adjustment | Yes |
| Shock Compression Adjustment | High & Low Speed |
| Shock Length Adjustable | Yes |
| Shock Reservoir Type | Bottom Piggyback |
| Shock Piston Diameter (mm) | 59.09 |
| Shock Rod Diameter (mm) | 21.01 |
If you have a problem, or are unhappy with your purchase, then we will put the matter right. You can return any item within 14 days and we will gladly replace the item or offer a full refund for it. All we ask is that you notify us of the fault within 7 days and send the items back unused in their original condition with all the original packaging. If we have made a mistake, we'll also refund the delivery charges. For your protection, where you are returning an item to us, we recommend that you use a recorded-delivery service. Please note that you will be responsible for the costs of returning the goods to us unless we delivered the item to you in error or the item is faulty.
Who do we use to deliver your order?
Our back office systems are fully integrated with Royal Mail, FedEx and DHL which means that the second your parcel is dispatched you will be sent an email containing your tracking details, we also aim to incorporate your mobile number within the booking process to allow the courier to send you a text message. This allows both you and us to track your parcel's every move from our door to yours!
Small items and orders such as fork spares are usually sent via Royal Mail whereas shock absorbers and forks will be sent via FedEx or DHL, all of whom make daily collections from our premises.
All our delivery costs are calculated on total weight, this includes the weight of both the products and the packaging.
Points to note
- We aim to deliver your order next day if ordered by 3pm if you use our express services
- All returns must be sent back to us at our contact address at your own cost and risk
- All delivery timescales are subject to stock availability
- Small items may be delivered by post.
- The contents of your order and your delivery postcode may determine which delivery services you will be provided
- Please note that we are unable to deliver to PO Boxes on any of our delivery services
About YSS
YSS have been manufacturing motorcycle shock absorbers for over 30 years and are one of the world’s largest aftermarket shock absorber manufacturers.
Using advanced technology and equipment at their state-of-the-art factory in Thailand and with the support from their European research and development team are continuously developing new products for an even wider range of motorcycles and continue to improve the quality of their YSS shocks.
They now produce everything from budget to race spec mono and twin shock absorbers, steering dampers, fork cartridge kits, springs, fork emulators and fork upgrade kits for a massive range of motorcycles, scooters and ATVs.
All YSS products are constructed from high quality, corrosion resistant materials and are covered by a two year manufacturers warranty.
