FAQ

Some oil vapor leaving the crankcase breather system is normal on any four-stroke, and the Milwaukee-Eight is known among owners for pushing more of it than riders expect, especially when the engine is hot and worked hard. A light film in the air cleaner area or around breather hoses is usually not a concern. Oil that you have to top up between services, or visible drips, is worth having a dealer or technician check. For riders who want a more controlled venting path, NICECNC's vented transmission top cover with breather filter and hose is one option.

On a Street Glide the bars sit in front of a fork-mounted fairing, so the grips are often further forward and lower than many riders would choose themselves. Reaching for them for hours loads your shoulders, upper back, and wrists, especially if you're average height or shorter. Moving the grips closer is the usual fix. One option is NICECNC's Kickback Handlebar Riser Kit for 1-1/8" bars, which pulls the bar roughly 4 inches back toward the rider, and can be converted to a straight riser by removing the kickback brace.

Moving the grips by several inches changes the length your cables and brake and clutch lines have to span, the angle of the controls, and the clearance between bars, fairing, and tank at full lock. Some riders find stock lines are just long enough; others need longer ones, and the factory key switch or steering lock can also get in the way on some setups. Turn the bars to full lock both ways before riding, and check for tight cable bends. NICECNC's riser kit changes the bar position only, so allow time to check lines, cables, and lock clearance as part of the install.

Touring models like the Street Glide use a belt for final drive, and belt tension matters: too loose can cause slap and wear, while too tight loads the rear wheel and transmission bearings. Check it at each service interval, after removing the rear wheel, and if you notice unusual noise or drive lash. Always follow the service manual procedure and specification. For riders who want an easier, repeatable way to set that tension, NICECNC's rear axle adjuster kit is one option.

The stock arrangement works, but riders who remove the rear wheel often, change wheels or tires frequently, or simply want finer, more repeatable adjustment than the factory method gives often look for an easier setup. An axle adjuster makes small, controlled moves possible, so you can reset tension to the same value each time. If you only check tension occasionally, it's an optional convenience rather than a fix. One option is NICECNC's rear axle adjuster kit, which pairs an aluminum adjuster with a steel rear axle for that kind of use.

The stock M8 Street Glide only gives you a warning light, and that light comes on after pressure has already dropped below a set threshold. It can't show a gradual drift, or a lower-than-normal reading when the engine is hot, which is what riders on long trips, in summer heat, or after changing oil type or adding a cooler most want to watch. A gauge shows the actual number as it changes. One option is NICECNC's M8 Oil Pressure Gauge Kit, which adds a stainless-housed gauge with a glass lens and a braided hose to the bike.

Many riders find the stock floorboard position puts their knees and calves close to the engine and tank, so engine heat and a tight leg position both build up on long rides, especially in stop-and-go traffic. Moving the boards outward gives your legs more room and a bit more air gap from the engine. One option is NICECNC's Rider Floorboard Extenders Kit, which moves the boards outward by 1.25 inches.

Not necessarily; a matched front and rear set usually looks like it belongs on the bike. A front guard and rear bag bar with the same tube profile and finish read as one design, while mismatched parts look bolted on. If you prefer a completely bare bike, nothing looks better than no guard, and the trade-off is protection. One option is NICECNC's front-and-rear set in anodized aluminum, offering black and orange color potions.