Review on 🚲 splumzer ZTZ Bicycle Shock Absorber: Ultimate Suspension Device for Road Bike Seat – Alloy Spring Steel, High-Performance Cycling Parts by Sean Zamora

[UPDATE 4/24/21: Still works and looks good.] No problem with my weight. On the scale, the stiffness stays at 1 point, but I would prefer 0.5-1 point softer. I like it! Just took a ride and adjusted the settings. I still feel great on the road. I went through a couple of 2-3 inch hits without leaving my seat to test the cushioning. If I stay where I am at my weight, the impact can travel up the seat tube, seatpost, saddle and right into my spine. But it was smooth. I felt a hit, but no hit or rebound. I didn't have the role that some people complained about. (I was willing to sit on my head as some said it fixed the rolling.) So: good road feel, no bouncing, no rolling, lean with no softness and *no more bumpy bumps*. No maintenance problems arise immediately. (I'll be checking bolts and steel regularly for a while.) Life testing started tonight and will hopefully continue for many years to come. My technique for simplifying the process of finding the most comfortable settings for your weight is to use the range they give at 45 pounds. Minimum. - 330 pounds max for exemplary. Assuming your weight is in this range: ([your weight] - 45 lbs) / 285 = percentage of upper scale to push down and secure the seat from the back of the spring. Move the lower scale to align the saddle with the seat post and fasten securely. Test drive and adjust as needed. I use the dead center measurement of the mounting brackets when the seat is mounted centered on the bracket. Otherwise dead center seat. Installation and/or adjustment may be delayed because unless the seat bracket and rod bracket are cantilevered at opposite ends, the rod bracket must be moved out of the way to get the hex wrench under the hex. seat screw. Even then it's tight. If you want to adjust the hard end I recommend getting a cheaper steel 6mm L-shaped allen wrench and sawing the short end down to fit between the two brackets just to adjust this seat bracket. There is an issue with the rear reflector/headlight as the seatpost is slightly lower under this spring. My reflector requires some rigging to mount to the top of the spring where the line of sight is over the C-pillar trunk pouch. My headlight is already behind the C-pillar.