Progressive 422 Series Adjustable Shocks

Without having the bike here to examine, it's difficult to say what length of shock you'd need to keep the same lowered rear. The 422 series shocks are adjustable down to 2" shorter than the OEM shocks that came on that bike, so you'll need to set that in comparison to the shocks that come off your bike, for length, at least. With regard to spring rate, you'll want to go with a set of standard rate shocks from Progressive as those would put you right in the correct range for your weight. Now, if you ride two-up and/or with a full load of luggage at least 50% of the time, then you'd want to go with heavy-duty shock springs, but with that, you may be sacrificing solo ride comfort a bit considering your weight.

It would be suggested to go with the standard rate shocks for your weight/ride style for your 2010 FLSTC.

Yes, the heavy duty 422 would be what you would want to go with. Once installed you can then adjust the preload and ride height to your liking.

You would want to go with the heavy duty version. Your weight is just over their 220 lb reference for choosing between the two so if you do go with the heavy duty version, you may need to back off the preload if you notice it feeling too harsh when riding. Same goes for the opposite affect of if you are a more aggressive rider and it feels soft you can adjust the preload to make the ride a little more firm.

If purchasing the Heavy Duty version, it should be pretty close out of the box. You may have to give the bike a ride to see how it's handling and make adjustments afterwards.

If you're riding two-up at least 50% of the time, yes - go with a set of heavy-duty rated shocks. Progressive recommends heavy-duty shocks for anyone that rides two-up at least 50% of the time, or solo riders that weigh over 220 lbs.

If the bike has been lowered or has failing suspension, that could be the cause. I would suggest inspecting your side stand. If the bike is lowered you would want to purchase a lowered side stand for a proper stance when on the stand if you just wish to make it sit better.

With conventional type shocks they are all set at stock length or lower. You would have to switch to something like the Legends Aero Air Shocks to gain and adjustability to raise the motorcycle from the stock height.

Yes, if you're riding with a passenger at least 50% of the time, we recommend that you order a set of heavy-duty Harley-Davidson Heritage Softail shocks from Progressive Suspension.

Progressive's 422 Series Adjustable Shocks are adjustable from stock ride height up to 2" lower than stock. They do not have provisions to extend past stock length to raise the motorcycle on a Softail

If you were to just lower the rear on its own, steering would be slowed and the bike would tend to run wide on longer corners. That, and the handlebars would make it feel like the bike wanted to "fall" into the turn, so you'd have to work a little harder to keep it going the direction you want. Depending on your tastes, this may or may not bother you. To keep the bike handling same, you'll want to lower the front the same amount. This can be done by installing a Progressive Fork Lowering Kit up front. In doing so, any changes to the rear are mitigated in lowering the front the same amount, thereby keeping steering geometry the same. Your bike will handle just as it did before. Actually, it'll be noticeably better since all suspension components have been upgraded. One thing to keep in mind is spring rate. Choosing the right spring rate will make a big difference in how your bike responds to a Progressive suspension upgrade. With Progressive's suspension components, heavy-duty springs are best suited for solo riders over 220lbs. If you ride two-up and/or with a full load of luggage at least 50% of the time, heavy-duty shocks are also recommended.

These shocks will use the factory Harley Davidson preload spanner wrench OEM part # 94455-89 or the provided Progressive Suspension tool with these shocks. Before installing the Progressive Suspension adjustable ride height shock, spin the non-flanged nut all the way onto the stud mount, followed by a bushing-cup, bushing, and sleeve. Then install these shocks as you would a stock unit as indicated in the OEM service manual. With the non-flanged nut spun all the way onto the stud, the stock ride height is achieved. Once you have installed the other bushing, bushing-cup, and flanged nut, you can now install the safety E-clip. This E-clip is snapped into the groove near the end of the stud mount where the threads stop. This is to serve as a reference point ONLY - when the flanged-nut reaches it you have lowered your ride height the maximum 2 inches.