I had some idle time, and after ordering some new ones (Bones Hard Core) to try and spares, I thought: “what are the 10 things to know about bushings?”
So, to help, my 10 things to know…
- They are important – a bushing is a simple polyurethane item, but with a really complex job to do (including keeping you鸿运国际网址官网下载安装 safe) balancing complex multi-directional forces. It is worth understanding how they work and getting the right ones for you鸿运国际网址官网下载安装.
- Guides, not rules – there is no definitive rule here – use what works for you鸿运国际网址官网下载安装. Mix what you鸿运国际网址官网下载安装 want. There are some good guidelines on what to use for you鸿运国际网址官网下载安装r riding style, board, trucks, and weight, but they are just guidelines. They are relatively inexpensive, but impact so much – buy a few, buy some spares. Try different ones. Buy a bagful.
- Different shapes – they come in different shapes (cones, barrels, stepped…) and construction (hard center, soft center…), which all work slightly differently depending on how you鸿运国际网址官网下载安装 want to ride. It is OK to mix shapes on the top and bottom side to tune how the board performs.
- Different durometer – they come in different softness/hardness (rated in durometer or “duro”) which you鸿运国际网址官网下载安装 match to you鸿运国际网址官网下载安装r weight and riding style. It is OK to mix the duro on the top and bottom. There are plenty of guidelines for matching you鸿运国际网址官网下载安装r weight and style to the duro.
- Different sizes – they come in different sizes (people often miss this): short, tall, fatter etc. Again it is OK to mix them and mixing is common; plus two that are tall can often not fit on the same kingpin.
- Match the truck – Some (it is rare) trucks are different to all others and need to work with specifically designed bushings – just make sure you鸿运国际网址官网下载安装 don’t get mixed up.
- Cup AND bushing – don’t think just “bushing”, think “cup/washer+bushing”. The cup/washer, that the bushing sits on, also impacts how the board performs. Match the size and shape of the cup/washer to the bushing size and shape.
- Never cut to fit – never ever cut a bushing to make it fit. Cutting it will introduce micro cuts and tears which can sheer under pressure and leave you鸿运国际网址官网下载安装 in a whole world of pain. If it does not fit, change it or the cup/washer.
- Replace? – if damaged, in any way – swap them out and throw away. Any damage can introduce a fault line which can then sheer under pressure. As said, they are inexpensive – just change.
- Good ones? – Yes, good ones are worth paying for – they are not “all just some plastic”. The formulas are different and how they perform can be very different – surprisingly so. Bad ones also run the increased risk of sheering. Even the best, however, are relatively inexpensive, so it is worth paying for the good ones from trusted brands like Venom, Riptide, BloodO, Oust, Orangatang, Shorty etc. if not sure, trust you鸿运国际网址官网下载安装r local skate shop.
Note, virtually all boards/trucks come with stock cheap bushings, set up for whatever they consider is the ‘average customer’ weight and riding style. I would recommend always changing to what works for you鸿运国际网址官网下载安装 – you鸿运国际网址官网下载安装r weight and riding style. The Paris ones that came with their trucks I like, but some of the cheap ones used on e-boards are poor and I would replace straight away.
Regarding e-boards, there is not much difference between a conventional longboard and an e-board in terms of bushings. The trucks are generally the same. Most people just set-up their e-boards as a downhill longboard, for greater stability at speed, using stiff (high duro) barrel+barrel – but you鸿运国际网址官网下载安装 can do what you鸿运国际网址官网下载安装 want and run them differently if you鸿运国际网址官网下载安装 want greater carving etc.
And finally, note that there is a small optimum range for the tightness or looseness of the kingpin nut. Too tight and you鸿运国际网址官网下载安装 will deform the bushing and it will perform worse or, worse, sheer. Don’t over tighten to change the performance (or help reduce speed wobble), change the bushing.
A great thread on Electric Skateboard Builders on setting up bushings: