I weigh about 300Ibs and got this to help accommodate my larger size. On the second to last preload adjustment point the bike still has about 70mm of sag and my mechanic said it should be around 30mm. I'm going to contact Race Tech this week to see what they suggest I do for my suspension on the rear whether that be getting a custom spring that is stiffer or just getting their heavier universal one and adding an extra adapter or two to stiffen it up at the expense of some travel.
According to Race Techs website our stock spring rate is 9.6Kg and this spring is weighted at 10.7 Kg so it's a good bit larger. From what I've read on the forums the stock bike is setup for someone who weighs a maximum of 180 or so so I think this spring would likely be good for someone around 250Ibs. Someone with more knowledge could probably provide a more accurate answer. I payed about $120 for the spring on eBay and an additional $50 (25$ for adapter and 25$ for shipping to Oklahoma) for the adapter which has to be ordered straight from Race Tech. I also had it powder coated red for $40 although color is subjective. It came in Blue which I'm not real sure matches any color schemes on the N1K so I feel red was a decent universal choice. I've got about $210 in it total and I'd like $120 for the spring and adapter plus shipping. I just had it installed on 3/27/21 and only have about 200 miles on it. I'll be removing it as soon I have the new replacement which will likely be in 1-2 weeks. I can provide pictures of it later on this evening. Feel free to ask any questions.
Spring: SRSP 5818107
Adapters: SPSC B5855N
SPSC P575212
According to Race Techs website our stock spring rate is 9.6Kg and this spring is weighted at 10.7 Kg so it's a good bit larger. From what I've read on the forums the stock bike is setup for someone who weighs a maximum of 180 or so so I think this spring would likely be good for someone around 250Ibs. Someone with more knowledge could probably provide a more accurate answer. I payed about $120 for the spring on eBay and an additional $50 (25$ for adapter and 25$ for shipping to Oklahoma) for the adapter which has to be ordered straight from Race Tech. I also had it powder coated red for $40 although color is subjective. It came in Blue which I'm not real sure matches any color schemes on the N1K so I feel red was a decent universal choice. I've got about $210 in it total and I'd like $120 for the spring and adapter plus shipping. I just had it installed on 3/27/21 and only have about 200 miles on it. I'll be removing it as soon I have the new replacement which will likely be in 1-2 weeks. I can provide pictures of it later on this evening. Feel free to ask any questions.
Spring: SRSP 5818107
Adapters: SPSC B5855N
SPSC P575212
