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56-1610
$78.99 USD
MSRP $121.99 35.2% Off
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K&N 56-1610

Custom Assemblies > Custom Racing Assembly
  • Designed to increase horsepower and acceleration
  • Show quality with custom chrome top and base
  • Washable and reusable air filter
  • High air flow with excellent filtration
  • One year limited warranty
K&N Custom Air Filters for Single or Two Barrel Carburetors - K&N custom air filter kits are designed to boost performance from your carburetor while keeping the dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and the famous K&N High-Flow Washable Air Filter.

[More Information on Custom Air Filters for Single or Two Barrel Carburetors]

Available Information

Product Specifications

Air Filter ColorRed
Air Filter Height1.75 in (44 mm)
Air Filter Inside Diameter4.875 in (124 mm)
Air Filter MaterialCotton Gauze
Air Filter ShapeRound
ColorRed
Filter MaterialCotton Gauze
Height1.75 in (44 mm)
Inlet Diameter1.46 in (37 mm)
Inner WireNo
Inside Diameter1.46 in (37 mm)
Mounting Hardware IncludedYes
Neck Flange1.46 in (37 mm)
Outside Diameter5.875 in (149 mm)
Overall Height2 in (51 mm)
Product Box Height6.63 in (168 mm)
Product Box Length6.5 in (165 mm)
Product Box Width3.63 in (92 mm)
Product StyleCustom Assemblies
Replacement FilterE-3211
StyleRound
Top Material/FinishChrome
Top StyleMetal
Weight1.1 lb (0.5 kg)

Customer Feedback

Be the first to review part 56-1610
Hellishly expensive, but K & N has been hellishly expensive for the 30 years I've been using them. I put two of these RU-1100s onto the mikunis carbs on my fairly heavily-modified 72 triumph bonneville street bike, after measuring the clearances, top to bottom, side to side, and front to back. The filters fit just like I planned, and work just like I intended. T the significant thing that makes K & N worthwhile, aside from the quality of the filters themselves, is the extensive size information available online. I'm used to having to guess how big things are based on vague descriptions, and then sending them back for a second try, or a third, or giving up. The very complete and specific information on the K & N website allowed me to work out exactly what I needed from fifteen or twenty alternative lengths, widths, and inside and outside diameters, and the filters fit perfectly, with exactly the clearances I planned. I i also use four K & N filters on my 74 triumph trident, three on the 26mm mikuni carburetors and another on the crankcase breather. I i'm running 35mm keihin FCR carbs on my 1965 triumph land speed race bike, and if I could figure out how to put filters over the FCR open velocity stacks, I'd use them there. No application for those carbs, unfortunately. if you come up with one I'll use them.

Kevin Roberts
Belmont, Ohio
Have always used K&N oil filters on both my Beta and Triumph. Really like the wrench-off nut on the Triumph can filter. Wonder if you have ever tried to invert the nut into the can to get a more flush cross section. As it is the nut is a bit below the bottom of the frame (on Triumph) making one take caution in lifting the bike for chain care.

Jerry Parker
DeBary, Florida
Ordered this with free shipping, got it sent direct to my technician. Arrived very quickly, quicker than expected in all honesty along with a couple of free stickers Fits perfectly to my Triumph America, no leaks or mess.

Ian Woodward
Nottinghamshire, England