Sigma Performance Slipper Clutches From UK Race Support Limited
Now with 60 different clutches, our range incorporates many popular street bikes as well as the race applications that have made our name. Sigma slipper clutches are designed to allow easier downshifting on the road or track. Originally a pure race accessory our slipper clutches smooth gear changes for skilled riders and beginners alike by automatically and seamlessly disengaging the clutch whenever engine braking or rear wheel hop becomes an issue.
During 2011 Team WFR used our clutches to dominate the BSB Evo championship on their Honda CBR1000RR’s while we also had success in Evo with Buildbase BMW using one of our clutches in their S1000RR to win the Thruxton EVO race. In BSS Supersport we won races and got podiums with Kawasaki 600’s, Yamaha R6’s and Triumph 675’s. Riders report smoother performance on corner entry and exit, crisper shifting action and increased ‘zip’ from the motor as major improvements over the OEM slipper units. All clutches are supplied with alternative spring preload spacers to allow slip levels to be adjusted. Each clutch is individually designed using carefully chosen ramp angles with ball bearings for the smoothest performance possible on road or track. All are supplied with full instructions. Most models use standard springs and plates.
The Sigma Performance Competition Slipper Clutch range and Retail Prices:
Aprilia SXV/RXV 450/550 Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses Honda CRF450 clutch plates and standard springs. £521 plus VAT
Aprilia RSV all models Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £565 plus VAT
Aprilia RSV4 Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £565 plus VAT
BMW S1000RR Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £565 plus VAT
Honda SP-1/2, Six ramps, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates and springs. £565 plus VAT
Honda VTR1000F , Six ramps, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates and springs. £565 plus VAT
Honda CBR1000RR (04 and 05). Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £565 plus VAT
Honda CBR1000RR (06 and 07). (Also fits 2009+ CBR1000R) Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £565 plus VAT
Honda CBR1000RR (08 on). Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and supplied springs. £578 plus VAT
Honda CBR926-954RR (00 – 04 inc). Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT
Honda CBR900RR (96 – 99 inc). Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT
Honda CBR600RR EVO All years. Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard 07+ clutch plates and springs. £549 plus VAT
Honda CBR600RR Corsa all years. Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates with 2mm metals (steel or titanium) and HRC/standard 07+ springs Lightweight Full Race. £599 plus VAT
Honda CRF450. Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £521 plus VAT
Honda CRF450X. Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £521 plus VAT
Honda CRF450 09+. Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £521 plus VAT
Honda XR650R. Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and supplied springs. £565 plus VAT
Kawasaki ZX6-05/08. Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £549 plus VAT
Kawasaki ZX6-09+. Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £549 plus VAT
Kawasaki ZX636-03/04. Four ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and supplied springs. £565 plus VAT
Kawasaki KX-F450. Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £521 plus VAT
Kawasaki ER-6 all years. Five ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £549 plus VAT
Kawasaki ZX-12 all years. Six ramp, wet type. Hard anodised in grey; Clutch centre
only. Uses standard clutch plates and springs. £578 plus VAT
KTM 990 Super Duke (and all LC8 Equipped bikes). Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates and Supplied springs. £565 plus VAT
KTM 690. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates and springs. £549 plus VAT
KTM RC-8. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates and supplied springs. £578 plus VAT
MV Agusta F4 312, Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates and springs. £565 plus VAT
MV Agusta 1000, Four ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch friction plates and springs. £565 plus VAT
Suzuki Hayabusa, All years. six ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and GSXR1000 springs. £578 plus VAT.
Suzuki Hayabusa Turbo, All years. seven ramp, wet type. Designed for Car or Hi Power applications incorporating additional plates and springs and a special heavy duty basket. Hard anodised grey. Uses standard clutch plates and GSXR1000 springs. £995 plus VAT.
Suzuki GSXR 1000K1 to 4. Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £565 plus VAT.
Suzuki GSXR 1000K5 –K8. Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £565 plus VAT.
Suzuki GSXR 1000 K9 on. Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £578 plus VAT.
Suzuki GSXR 600/750K1-K5 /SRAD. Five ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT.
Suzuki GSXR 600/750K6 on. Five ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT.
Suzuki RM450 All years. Five ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and springs. £521 plus VAT
Suzuki SV650 ‘33’ All years. Five ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT
Suzuki SV650 Racing All years. Five ramp, wet type. Hard anodised grey; Complete assembly inc basket. Takes two extra plates to cope with more power. Uses standard clutch plates and CBR6 springs. £749 + VAT
Triumph 675 Daytona/ Street Triple All years. Five ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT
Triumph 955/955i (early model pre engine # 220357) All years. Six ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and springs. £578 plus VAT
Triumph 1050 (all models + late model 955i post engine # 220357). Six ramp, wet type. Hard anodised grey; Clutch centre only. Uses standard clutch plates and springs. £578 plus VAT
Yamaha R1 (Pre 04) . Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and has a coil spring conversion, springs are included. £578 plus VAT
Yamaha R1 (04+05) (also 06 on FZ-1). Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and spring. £565 plus VAT
Yamaha R1 (06). Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and spring. £565 plus VAT
Yamaha R1 (07+08). Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and spring. £565 plus VAT
Yamaha R1 (09+). Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and spring. £565 plus VAT
Yamaha XJR1300, FJ1100, FJ1200, XJR1200, all years. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and spring. £578 plus VAT
Yamaha TDM900. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and spring. £549 plus VAT
Yamaha R6 All years to 2005. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT
Yamaha R6 06 on. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT
Yamaha XTZ660/XT600/XT600E (83 to 04). Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and TZ springs. £521 plus VAT
Yamaha XT660X/R/ Raptor (4 Valve). Five ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £549 plus VAT
Yamaha YZF/WR450 YZF to 08; WR all years. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £521 plus VAT
Yamaha YZF450 - 08+. Six ramp, wet type. Hard anodised in grey; Clutch centre only. Uses standard clutch plates and springs. £521 plus VAT
Ducati 695/696/796. Six ramp, wet type. Hard anodised in grey; Uses standard clutch plates and supplied springs. Includes Clutch centre only £565 plus VAT
Ducati 848/Sport Classic/ST3 Six ramp, wet type. Hard anodised in grey; Uses standard clutch plates and springs. Includes Clutch centre only £549 plus VAT
Ducati. All bikes with air-cooled clutches since 1990. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface; Uses standard clutch plates and 1098/1198 springs. Clutch centre only £549 plus VAT
Ducati. 1098/1198. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface; Uses standard clutch plates and springs. Clutch centre only £549 plus VAT
Ducati. Race All bikes with air-cooled clutches since 1990 except 1098/1198. With 38 degree ramps. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface; Uses standard clutch plates and 1098/1198 springs. Clutch centre only £578 plus VAT
Ducati. Race 1098/1198. With 38 degree ramps. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface; Uses standard clutch plates and 1098/1198 springs. Clutch centre only £578 plus VAT
Ducati. All bikes with air-cooled clutches since 1990 except 1098/1198. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface; Uses standard clutch plates and 1098/1198 springs. Includes Clutch centre and Alloy 12T basket £608 plus VAT
Ducati. 1098/1198 only. Six ramp, dry type. Hard anodised in grey with a Red pressure plate and ceramic friction surface; Uses std clutch plates and springs. Includes Clutch centre and Alloy 12T basket £608 + VAT
Ducati. Race All bikes with air cooled clutches since 1990 except 1098/1198. With 38 degree ramps. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface; Uses standard clutch plates and springs. Includes Clutch centre and Alloy 12T basket £638 plus VAT
Ducati. Race 1098/1198 only. With 38 degree ramps. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface; Uses standard clutch plates and springs. Includes Clutch centre and Alloy 12T basket £638 plus VAT
Ducati 48T Kit. All bikes with air-cooled clutches since 1990 except 1098/1198. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface. Uses 1098/1198 springs. Includes Clutch centre, 48T Alloy clutch basket and 48 tooth clutch pack. £781 Plus VAT
Ducati 48T Kit. 1098/1198 only. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface. Uses standard springs. Includes Clutch centre, 48T Alloy Clutch basket and 48 tooth clutch pack. £781 Plus VAT
Ducati Full Race 48T Kit. With 38 degree ramps. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface. Requires 1098 springs. Includes 38 degree Clutch centre, 48T Alloy Clutch basket, 48 tooth clutch pack and alternative centre nuts for Bip/SPS/R /1098/1198/CR gearbox shafts. £826 Plus VAT
Ducati Desmosedici RR 48T Kit. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface. Uses standard springs. Includes Clutch centre, 48T Alloy Clutch basket and 48 tooth clutch pack. £781 Plus VAT
Ducati Desmosedici RR Full Race 48T Kit. With 38 degree ramps. Six ramp, dry type. Hard anodised in grey with a Red pressure plate using a ceramic friction surface. Requires 1098 springs. Includes 38 degree Clutch centre, 48T Alloy Clutch basket, 48 tooth clutch pack. £826 Plus VAT
Ducati 12T Basket only All bikes with air-cooled clutches since 1990. Uses Std clutch pack £139 + VAT
Ducati 48T Basket only All bikes with air-cooled clutches since 1990. Requires 48T clutch pack £195 + VAT
Ducati 48T Clutch pack only All bikes with air-cooled clutches since 1990 with 48T basket. £169 + VAT
Ducati 48T Clutch friction plates All bikes with air-cooled clutches since 1990 with 48T basket. £18 per plate plus VAT
Sigma Race Specialities
Ducati Clutch Slave Cylinder Lower lever effort. £115 plus VAT (or £65 when ordered with one of our Ducati dry clutches)
Honda CBR600RR Oil cooler. A cast aluminium oil cooler for tuned Honda 03 to 06 CBR600RR engines. £246 plus VAT
We offer free shipping on all Sigma clutches bought in May 2012. Please call us to order your today.
Tel. Si on 01773 591708 or 07811 889 996
www.ukracesupport.co.uk