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Hello fellow dirt mavins! I have recently traded my road bike for titus racer x . It has Maxxis Wetscream tires currently . I plan on riding mostly xc and have seen that the screams are a dh tire . Being new to mountain biking any suggestions on tire choices would be welcome. I am in the 190-200 lb range if this makes any differance. Also would like to get some input about shock pressures for a rider my size . The bike has a Manitou skareb super w/ lockout and a fox RP2 W/ lockout. Thanks for your input .BGD 😉
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Depends alot on the trails and terrain you will be riding.XC for someone in Ohio would be different than say us down here in Florida…we have sand and roots that like to grow out to the side,not down and Ohio has real dirt and more rock.
Where are you located?
Maybe some riders live close to you and could recommend something with your type of terrain in mind.
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I live in central new york . will be riding on hard pack /clay some rocky areas also encounter shale /roots / mud and the usual logs and streams.I have a cabin on top of the hills in the fabius /deruyter area . my property sits in the middle of approx 5000 acres of forever wild state land that is not far from the highland forest area.
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Your local bike shop is the best place to go for tire advice. They ride the trails and burn through tires. They know what works. When I move to a new area or visit an area for riding, I always visit the LBS for tire suggestions.
There is no magic number for shock pressures. If I take your fox rp2 and put it on my Blindside the shock will require more air pressure than if the rp2 where on my Preston. The Blindside has a huge leverage ratio. The rule of thumb is: Put on all of your riding gear and sit on the bike as if riding. You should use 25-33% of your travel. We call that sag. Some frames and forks use different numbers. Check the frame’s manual/website for rear sag and the fork’s manual/website for the fork.
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I’m also in the process of dialing in both my tire pressure and front and rear suspension. First, so far I love my tires, Kenda Nevegals. I’m about 175lbs and would recommend these for any rider. Next, I started with about 40psi rear and 36psi front. Each ride I’ve lowered a little psi at a time and have ended up up 35-36psi rear and 30-32psi front and I’m very comfortable there. For my rear suspension I’m around 145-150psi, in between 25-30% sag. My forks are about 80psi, around 25-30% also. I’m still playing with my rebound so some of this may change. I guess the moral here is keep playing with it till you feel good and remember where that is. It’s really trial and error.
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A quick suggestion on getting sag right on your bike…
1st find the right tire pressure and then KEEP it there. Tire pressure affects the cushionyness (is that even a word) of your ride as well as the traction. If you keep changing this back and forth you’ll never get it right.
2nd, don’t forget that the number you see on your shock pump is artificially high. Some of that pressure is the air that is in the hose of the pump. I think my pump loses about 12 psi when I take disconect the pump hose.
CJM had is right, most of the time the rule of thumb for shocks is 10-25% sag for XC/AM and up to 30% for DH. On forks, it is usually 20-25% sag.
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