@Beams37 I just went through this whole process of selecting suspension the last 5 months. I'm sure there are folks who are more knowledgeable than me, but if I had to flowchart the decision making process for me, it would be something along the lines of:
- The first fork in the flowchart is whether to go "monotube" (more oil) or "twintube" (less oil to dissipate heat)? Plus most monotubes use an "internal floating piston" to prevent the oil and nitrogen (emulsion) from mixing like in a twintube (though some of the twintube foam cells attempt to mitigate).
- If "monotube," then do you use "coilovers" (adjustable height) in front or simple shock (not height adjustable)?
- If "coilovers" in front, then "reservoir" (more oil) or no reservoir (less oil)?
- If coilovers with reservoir, do you also opt for "bypass valves" (position sensitive dampening) and/or compression adjusters? IMO, these are overkill - I suspect most folks end up in step 3 of the flowchart above (a coilover system, regardless of whether it had reservoirs or not).
Two other factors that don't lend themselves to a flowchart are:
- Extended travel vs OE travel
- Tube diameter: The larger the diameter, the more oil the shock can hold to dissipate heat. My understanding (which may very well be wrong) is that a 2.5" diameter shock is comparable in performance to two 2.0" diameter shocks. ...and a 2.5" with reservoir is comparable in performance to two 2.5" shocks without a reservoir. Plus the reservoir allows the nitrogen to be run at a lower pressure, which translates into less wear. I couldn't find the specs to confirm the diameter, but I believe the "51" in BP-51 means its 51mm, which = 2.0".
- Maintenance schedule: The maintenance schedules vary. Twintubes are meant to be completely replaced when they wear out. Monotubes are meant to be rebuilt anywhere from 25k miles to 60k to... whenever it no longer works.
- Post-Sale Customer Service: Some brands have notoriously nonexistent service, while others will bend over backwards to make sure the customer is happy.
Below are the usual suspects. I'm happy to share my personal opinion on customer service and maintenance schedules - just send me a DM.
Monotube options
- King
- Icon
- Fox
- Radflo
- OME BP-51
Twintube options
- Tough Dog (foam cell)
- Ironman (foam cell)
- OME Nitrocharger