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ISR 6 Piston Monoblock 108mm Mount/Universal Radial Front Brake Caliper (Single), Including Pads (22-034) Ref: ISRRAD Precision machined from a solid billet of aluminium alloy - these ultra-light and beautiful calipers are THE must-have upgrade for all front radial brake equipped bikes.
These are the first and still the best aftermarket 6 piston monoblock radial calipers for the standard 108mm radial mounting arrangement - for all current Japanese sports bikes - meaning your investment is protected because you would normally be able to simply switch them to your next bike in the future.
And, at only 718g inc. pads per caliper, you can save a massive 0.6Kg unsprung weight from your front suspension when compared with Brembo's M4 monobloc caliper - which are still only a conventional four-piston design.
| "Weight saving where it really counts - unsprung and pivoting round the headstock. Not cheap but you can go some way to justifying your investment when you realise that because they have the standard Japanese radial calliper 108mm mounting spacing they'll happily transfer to the bike you buy after the one you have now.
With six individual pads per calliper they have the best possible pad area and get around the flex and clamping problems that single pads can suffer from.
Calipers are aluminium as are the pistons, the latter being Tufram coated. SBS Carbon Matrix pads are included. Pad track is 27mm and they work with discs of 280-320mm. Weight of each calliper including pad is 718g. A standard R1 four-piston is 1Kg with pads."
Performance Bikes Magazine |
| "Diving into the Old Hairpin it's time to hit the brakes. The new, Swedish made six-piston ISR calipers are sensitive enough for me to brush the lever and scrub off speed, but they also offer huge stopping power when I need it at the end of the back straight."
Adam Child, MCN Track Test
Norton Senior TT challenge bikes |
Size-for-size - due to their six individual pads design - they have a larger piston to pad ratio than a four piston caliper to deliver an unmatched braking power to weight ratio combined with more controllable braking due to their excellent lever feel.
- Ultra-light (0.6Kg per pair lighter than Brembo M4 monobloc 4-piston and lighter still compared with standard/OE two-piece units)
- Most common "universal" 108mm radial fork bottom bolt mount pitch
- Durable clear anodised finish
- Tufram coated aluminium alloy pistons
- Six individual pads (included) for more precise braking feel and better modulation
- Very quick and easy to bleed
- Mounting bolts and spacers can be supplied separately if required
Key Dimensions/Technical Data
Weight per caliper - excluding pads: 538g, including pads: 718g
Pad area: 20.9cm²
Pad track: 27mm (for standard or narrow track discs)
Brake Disc diameter compatibility: 280-300mm or 310-320mm
10mm mounting bolts hole length: 33mm (with 14mm dia. x 3mm depth button recesses)
Hydraulic Threads M10 x 1.25mm (10mm depth)
Click here to download a PDF Technical Data Sheet
Please note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
HPS can also produce very lightweight discs to go with these calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
Price:£481.36 (£577.63 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
Read the ISR 6 Piston Monoblock 108mm Mount/Universal Radial Front Brake Caliper (Single), Including Pads (22-034) Reviews... (Overall Rating: 10 out of 10) Well worth the investment on my Speed Triple... It won best in class and over all show winner at the Triumph live custom show (which I was quite pleased about). The judges said it won it for the level of detail and engineering involved, especially the radiator/oil cooler, exhaust AND the ISR brakes, rightly so! The ISR's are my favourite part. Wayne - Triumph 1050 Speed Triple
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ISR 6 Piston Monoblock 130mm Yamaha YZF-R1, VMX1700 VMAX, MT-01 07> Direct Replacement Bespoke Radial Front Brake Calipers (22-052) Ref: ISRBES AVAILABLE NOW FOR:
- Yamaha YZF-R1 07-08 and 09> onwards
- Yamaha VMX1700 VMAX 08> onwards
- Yamaha MT-01 07> onwards
Special direct fit calipers designed for the larger 130mm mounting pitch on these three Yamaha bikes' fork bottoms which completely avoid the need for unsightly adaptor brackets.
Precision machined from a solid piece of billet aluminium - these beautiful and ultra-light units save weight just where you need it - unsprung weight - and are THE must-have upgrade for the current R1 and V-Max along with soon to be classic MT-01.
Size-for-size - due to their six individual pads design - they have a larger piston to pad ratio than a four piston caliper to deliver an unmatched braking power to weight ratio combined with more controllable braking due to their excellent lever feel.
- Ultra-light & durable with clear anodised finish
- Tufram coated aluminium alloy pistons
- High-performance Brake Pads included
- Mounting bolts and spacers can be supplied separately if required
Key Dimensions/Technical Data
Weight per caliper - excluding pads/pins: 690g
Weight per caliper - including pads/pins: 918g
Piston Diameter: 30mm
Pad area: 31.8cm²
Pad track: 33/34mm
Brake Disc diameter compatibility: 300-320mm
10mm mounting bolts hole length: 42mm (with 14mm dia. x 4mm depth spacer/button recesses)
Please note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
HPS can also produce very lightweight discs to go with these calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
Price:£530.50 (£636.60 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
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ISR 6 Piston Monoblock Conventionally Mounted Front Brake Caliper (each), Including Pads (22-032) Ref: ISRCONV Not got one of the latest radial-equipped bikes, but still want the best brakes available? These calipers are for you! Sharing all of the features of ISR's radial range but with a conventional mounting style.
Available for most late sportbikes
Size-for-size - due to their six individual pads design - they have a larger piston to pad ratio than a four piston caliper to deliver an unmatched braking power to weight ratio combined with more controllable braking due to their excellent lever feel.
- Pads included
- Lightweight & durable with clear anodised finish
- Turfam coated aluminium alloy pistons
Weight per caliper (including pads): 940g
Pad track: 33mm
Pad area: 31.8cm²
Disc diameter compatibility: 300-320mm
Hydraulic Threads M10 x 1.25mm (10mm depth)
Click here to download a PDF Technical Data Sheet
Please note: This is most probably not a direct replacement for your original caliper, meaning you may need to modify your existing bracket or have a new one produced. Before purchase please check dimensional compatibility by downloading the above linked technical datasheet or contact us if you need advice with this.
When adding to shopping cart you will be asked to confirm the make, model and year of your bike.
Please note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
HPS can also produce very lightweight discs to go with these calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
Price:£547.80 (£657.36 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
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ISR Large Endurance 108mm 6 Piston Monoblock Radial Front Brake Caliper (each) Including Pads (22-044) Ref: 45766 The biggest and baddest caliper in the ISR range, these deliver phoenominal stopping power!
Supplied in the 108mm radial mount fitting as used by the majority of sports bike manufacturers, they will drastically improve the stopping power of any bike.
As used by Ghost Rider on his 499 BHP Turbo Suzuki these calipers have been tested at over 230MPH! After watching him ride you can see why he needs good brakes and he only uses ISR products!
- Pads included
- Weight per caliper (including pads): 1.10KG
- Pad Track: 33mm
- Pad Area: 31.8cm²
- Disc Size: 320mm
- Hydraulic Threads M10 x 1.25mm (10mm depth)
Click here to download a PDF Technical Data Sheet
When adding to shopping cart you will be asked to confirm the make, model and year of your bike.
Please note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
HPS can also produce very lightweight discs to go with these calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
Price:£689.21 (£827.05 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
Read the ISR Large Endurance 108mm 6 Piston Monoblock Radial Front Brake Caliper (each) Including Pads (22-044) Reviews... (Overall Rating: 10 out of 10) Superb products! ISR calipers are top class! Will look there again if purchasing those beautiful carbon wheels :) Tomas - Czech Republic
The braking performance is really outstanding... ...combined with Brembo 19RCS lever. TM - Yamaha YZFR1 2004
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ISR 4 Piston Monoblock 100mm or 108mm Mount/Universal Radial Front Brake Caliper (each), Including Pads (22-047) Ref: ISR4PSTF An ideal upgrade for the mass-produced 4 piston calipers found on 90% of sportsbikes. Crafted from a solid piece of billet aluminium and using 4 individual pads per unit, these calipers not only look great but have the performance to match! Utilising the standard 108mm radial mounting arrangement of all current Japanese sports bikes - your investment is protected because you should be able to simply switch them to your next bike in the future (there is also the option of 100mm bolt pitch for Italian bikes). The unique design of these calipers also means that these can be fitted on either the left or right side with no modifications required.
- High-Performance Brake Pads included
- Ultra-light & durable with clear anodised finish
- Mounting bolts and spacers supplied where required
- Tufram coated aluminium alloy pistons
- 100mm or 108mm mounting bolt pattern
Weight per caliper (including pads): 800g
Pad track: 33mm (conventional standard width track)
Pad area: 21.8cm²
Disc diameter compatibility: 280-320mm
Hydraulic Threads M10 x 1.25mm (10mm depth)
Click here to download a PDF Technical Data Sheet
When adding to shopping cart you will be asked to confirm the make, model and year of your bike.
Please note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
HPS can also produce very lightweight discs to go with these calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
Price:£411.62 (£493.94 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
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ISR 4 Piston Monoblock 84mm Mount/Universal Axial Front or Rear Brake Caliper, Including Pads (22-048-OC) Ref: 60015 An ideal upgrade and direct replacement for the mass-produced and very popular Brembo 84mm 2 piston 'P2' calipers as are widely found on the rear of many bikes.
Crafted from a solid piece of billet aluminium and using 4 individual pads per unit, these calipers not only look great but have the performance to match!
- Ultra-light & durable with clear anodised finish
- 84mm (M8 threaded) mounting bolt pattern
- Tufram coated aluminium alloy pistons
- Standard organic roads pads included
- Optional upgrade professional race sintered pads (tick box below)
- Option for unthreaded 8mm mounting bolt holes (tick box below)
Weight per caliper (including pads): 460g
Piston diameter: 25 mm (x4)
Swept height of disc: 27 mm (conventional standard width track)
Pad area: 14 cm²
Disc diameter compatibility: 150-250 mm
Hydraulic Threads M10 x 1.25mm
Please note: This is most probably not a direct replacement for your original caliper, meaning you may need to modify your existing bracket or have a new one produced. Before purchase please check dimensional compatibility by requesting a technical datasheet or contact us if you need advice with this.
Please note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
HPS can also produce lightweight bespoke/custom rear or front discs to go with these or any other calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
Price:£358.83 (£430.60 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
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ISR 2 Piston Rear Brake Caliper (each) (22-027) Ref: ISR2PSTR Expertly carved from billet aluminium - these calipers from ISR are THE must-have upgrade.
- Durable with clear anodised finish
- Tufram coated aluminium alloy pistons
- Pads NOT included
Weight per caliper (including pads): 530g
Pad track: 35mm
Pad area: 12.8cm²
Disc diameter compatibility: 170-280mm
Piston Diameter: 34mm (x2)
Hydraulic Threads M10 x 1.25mm (10mm depth)
Mounting holes: Pitch/distance apart 65 mm. threaded M8 x 1.25, hole (9.0 mm depth)
Offset (rear of mounting flange to disc centre-line) 14.5 mm
Click here to download a PDF Technical Data Sheet
Please note: This is most probably not a direct replacement for your original caliper, meaning you may need to modify your existing bracket or have a new one produced. Before purchase please check dimensional compatibility by downloading the above linked technical datasheet or contact us if you need advice with this.
Please note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
HPS can also produce very lightweight discs to go with these calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
Price:£182.56 (£219.07 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
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ISR 2 Piston Radial Racing Rear Brake Caliper, Including Pads (22-049) Ref: ISR2PSRR Extremely Light - Extremely Versatile!
Beautifully carved from billet aluminium - these ultra-light radial rear calipers are available in Left-Hand or Right-Hand versions (Right-Hand version pictured) or could be used at the front (for very light bikes only - in single or twin disc configurations) with discs from 150 to 250 mm in diameter.
Because the swept height of the pads is only 27 mm, this also means HPS can produce very lightweight discs to go with these calipers (see our bespoke discs information page and downloadable ordering/quotation form here).
- High-perfromance Sintered brake pads included
- Ultra-light & durable with clear anodised finish
- Tufram coated aluminium alloy pistons
Weight per caliper (including pads): 290g
Piston diameter: 25 mm x 2
Pad area: 7 cm² x 2 = 14 cm² total
Pad track/swept height of disc: 27 mm (narrow track)
Mounting holes: Pitch/distance apart 56 mm. hole depth 27.4 mm
Mounting bolts: 8 mm diameter x 2 (not included)
Offset (mounting bolts to disc centre-line) 15 mm
Hydraulic Threads M10 x 1.25 mm (10 mm depth)
Disc size/diameter compatibility: 150 - 250 mm
Disc thickness: 4.6 - 5.0 mm
Surface finish: Clear anodised
Please note: Due to the smaller dimensions of this caliper, this will not normally be a direct replacement for your original caliper, meaning you may need to modify your your front forks / existing rear bracket, or have a new bracket / adaptors manufactured. Please contact us if you need advice regarding this.
You will be asked to confirm the make, model and year of your bike once you've added this item to your shopping cart.
Note: We also supply these calipers for race cars, click here for more information.
Please also note: We can supply ISR parts unanodised should you wish to apply your own finish, just tick the option box below when ordering, the parts will also be supplied unassembled.
Price:£208.97 (£250.76 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
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ISR Piston Cap Removal ToolRef: ISRPSTCPRT
Billet tool for removing the piston caps from your ISR caliper.
Available for 25mm, 30mm, & 34mm pistons.
Size required...
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Price:£53.72 (£64.46 Including UK VAT at 20%)
(Shipping costs calculated before checkout and 20% UK VAT/tax will be removed for non-UK destinations)
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