Best Rear Sprocket Size for trailriding?

Im lookin to change gearing on my 04 crf 450. Probably ride 80% off road and 20% track. Should I go to a 52? 53? Should I buy a new front one also?How much of difference does it make? What about different flywheel weights are they really worth it?

I have mine geared at 14 frt & 47 rear...I ride mostly desert....great for top speed on the fireroads and fast sections.....but 1st is pretty tall..lots of clutch slipping in the real tight nasty sections....

Im lookin to change gearing on my 04 crf 450. Probably ride 80% off road and 20% track. Should I go to a 52? 53? Should I buy a new front one also?How much of difference does it make? What about different flywheel weights are they really worth it?

I have a 52 tooth rear and love it but that is pretty low gearing. You really need to check with some local riders and see what they run. Our tight NC singletrack and your trails may be nowhere near the same.

Will my chain still fit with a bigger sprocket? Chain is only got about 5 rides on it.

you might have to change the chain if you go to big...the stock chains dont last very long , so you should change it now anyway.

fly wheel weight yes yes yes yes I went +11 oz trail tech yes made it awsome. I am using 13/ 52 on my 03....

Did u loose much power with the 11oz?

Nah you won't lose power cause of a heavier flywheel.It just smooths out the delivery.I run the same set-up as andrae 13/52 and an 11 oz. TrailTech flywheel.I used to have problems in the rough stuff with the bike's ultra quick response but no more.Makes running the whoops a blast for me.

I'm not a trail rider, but did try 13/50 on the mx track. It seemed really low, with the gears being really close. I ended up liking 13/49 or mx. I don't think I would like anything lower than 13/50-51 for the trails.

So a 11oz trailtech is 11oz heavier than stock? Is it a difficult install?

It's very easy to install, just be sure you have the correct puller or you'll ruin the crank. Get a new case cover gasket too.

On my 03 I have 13 - 48 & it works really well in the rails (2'nd & 3'rd most of the time) 13 - 50 is stock. I think I'm going to a 13 - 49 & see how that works out. Should be a good range for both track & woods.

i like poop

Im lookin to change gearing on my 04 crf 450. Probably ride 80% off road and 20% track. Should I go to a 52? 53? Should I buy a new front one also?How much of difference does it make? What about different flywheel weights are they really worth it?

I run 14/48 for trailriding with a 17oz flwheel weight plus rewound stator with the rare earth magnets, which increase resistance as well.

I havent ridden my 14/48 much yet but up and down the drive way it rocks. really widens the power out nicely.

Trying to bog the bike on steel hills was quite difficult. I dropped to almost zero revs and boy did it feel powerful.

14/48 even though many will say is desert gearing, rocks off road. First gear is actually usable and with a 17 oz flwheel you can watch the clutch less. It can still stall but as long as ou have some gas going, it's pretty difficult.

That said, the big CRF still packs an incredible wallop of power even with the 17 oz flwheel. I still can't believe how much of a hit it has.

Overall I think with 14/48 it allows the use of first when normally first would be impoissbly short if you ran say 13/49.

I'm gonna try a 46 rear soon and see how it goes.

You must have wide open trails in Australia.

Stock is 13-48... I slapped on a buddy's 50 and tried it in the mountains (9kfeet) this weekend..

I've never understood why people complain as I rode some tight stuff on major climbs at altitude with full stock bike and it lugs my 240lbs no problem.

Anyway.. the 2 more teeth is a little better tho brings shifts closer.. I wish I could easily try a few more combinations to know for sure.. but the only thing I can really tell you that may be useful is that with the two extra teeth you don't lose enough top-end to not still be scared when flat out.

I've settled on 13/49 on my rebuilt '02 ('04 piston and ported head). I ride trails in NorCal. It winds out a little bit early on very long open straights, but I like it overall for winding through the trials in 2nd and 3rd gear. 13/48 might be a little too steep for where I ride. Haven't tried any of the 14/?? combos however.

Just some more info on my setup...

I have a 14-52 combination on my 2004 CRF450 for track and dunes. 14-52 is nearly the same as the stock 13-48. That gearing is a bit high for tight trails, so I swap out the 14 front sprocket to a 13...

The advantage I found is that I dont have to change my chain length when swapping the front sprocket. Just have to re-adjust the slack.


On 4/19/2005 at 1:29 PM, andrae said:

fly wheel weight yes yes yes yes I went +11 oz trail tech yes made it awsome. I am using 13/ 52 on my 03....

Did you have to change your Chain when u changed gearing?

Running 13/50 on an '07, stock is 13/48, also a +13 flywheel. Great trail gears, top end will still thrill. Depending on how many links you got(I think you need 117 for a 50), might not need a chain.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By aminem
      my kill switch is not working and i had bought a new one , My problem is that , i cant disconnect the OEM kill switch . is it a trick to disconnect it !? 
      plz Help
    • By Kevin from Wiseco
      Jeremy Martin Leads the Charge for Wiseco Riders at Daytona Supercross
      Christian Craig Turns in Career Best in 450 Competition
      MENTOR, Ohio (March 13, 2018) – Jeremy Martin showed the way for Wiseco-sponsored riders in Saturday night’s Monster Energy Daytona Supercross presented by Honda. In a season marred by bad luck and misfortune, Martin put together a near flawless ride to earn his first Eastern Regional 250SX Class podium finish of the season.
      Martin qualified eighth for the division’s annual visit to the World Center of Racing, finished fourth in his heat race, and came home second in the 250SX main event, missing his first win of the year by less than a second.

      “It’s Daytona, a real man’s track.” said Martin who sits fourth in points. “It was the toughest race of the year as far as fitness. I had to slow down a little bit, halfway through the main. I was getting close to (race winner) Jordon (Smith) and I was starting to think about where I could make a move on him, then I made some mistakes and he got away from me. Couldn’t quite get close again, but it’s good. We’re on the podium and in contention for wins again. That’s something I haven’t been able to say in supercross in a while. We want to get wins and now we know it’s coming.”
      Martin’s podium was a bright spot, but the rest of the event was rough for the GEICO Honda/Factory Connection squad. RJ Hampshire crashed hard in his heat race and had to be transported to a local hospital. He injured his back and ribs, but shoulder pain left him with the most concern.
      “I felt good on the bike all day,” said Hampshire via his Instagram account. “Had some pretty good speed and my foot just slid off hitting my shifter in those rollers during that heat race. After seeing the pictures from the crash I’m very thankful I didn’t take a shot to my head. I have some fractures in my T3/T4 in my back and ribs. Also have some damage to my lungs which is why I’ll be spending a couple nights in the hospital. I’ll be getting some more checkups this week on the shoulder also.”
      Cameron McAdoo, the third member of the team, was unable to compete at Daytona after being sidelined with a hand injury two races ago in Atlanta.
      Across the paddock, in the premier 450SX Class, Christian Craig got the call to fill in for Team Honda HRC. With the team’s regular riders Ken Roczen and Cole Seely out with injuries, it was up to Craig to carry the load for the factory team, and the upstart rider didn’t disappoint.
      The San Diego native was solid in both qualifying sessions, won his heat race and snagged the holeshot in the division’s main event. After relinquishing the lead to eventual winner Justin Brayton, Craig continued to show he was up for the challenge. The 26-year-old rider raced for second and third for most of the 20-minute-plus-one-lap feature before losing one more spot in the late goings to bring his No. 32 Honda CRF450R home fourth in the final rundown.

      “I had a great week testing with the team,” commented Craig. “They came down to Florida right after Atlanta and I feel like we really improved. Just getting more time on the bike and getting more comfortable was huge. I started off race day feeling really good. My qualifying position didn’t really show it, but overall I was happy with my riding. It’s all about having fun out there, and man, that’s what I did tonight. I was up front in the heat race, fell to third, but then the two guys in front took each other out so I ended up winning. You can call it luck or whatever, but I just put myself in a good position to capitalize on people’s mistakes."
      “I had a good gate pick and some confidence going into the main. I grabbed the holeshot and led for almost the first lap, but [Justin] Brayton got by me pretty quick. I stayed second for quite a while. I just rode my hardest and did my best. Unfortunately, a couple guys got by me so I ended up fourth. The track was so tough. This is only my second time racing Daytona and last year didn’t go well, so I really wanted to get some revenge this year. It’s better than the week before, but man, I was so close to a podium. I just need to keep putting myself in good positions and work on getting better each weekend.”
      Monster Energy AMA Supercross rolls on this weekend when the series visits the “Gateway to the West” for its annual race at the Dome at America’s Center in St. Louis. The 11th of 17 races on the 2018 supercross calendar will be televised live on FS1 Saturday, March 17, beginning at 8 p.m. Eastern Daylight Time, 5 p.m. Pacific.

    • By desert520sx
      I have a 03 450 that I just got and it runs great! I love my bike and am big on preventative maintenance. I have searched the threads on TT and have not found any descriptive threads on how to check valve clearance or adjust them. Just by looking at them, I can see that the intakes need to be shimmed and the exhaust valves can be adjusted quite easily unless one needs to be adjusted differently than the other.
      I tried to do it last night, and lined up the marks on each side to get the piston to TDC to check adjustments and could not get any readings on tolerances on either the intake nor the exhaust. I moved the crank a little bit forward and got a .011 reading on the exhaust valves. I read in a thread that the spec was .011" for the left one and .014" in the right for the auto decompressor. The spec I am using for the intakes is .006" Are these specs correct? :excuseme:The only issue is that the adjustment for the exhaust valves is one and the same. Different from my KTM where you can adjust each valve individually.
      No matter where the cam was on the intake valves, I could not get any readings. Does anyone have a thread, website, downloadable manual, or article on checking and adjusting valves in these beasts?
    • By Eric Schrader
      I am selling my 2007 Honda CRF 450-R which is set up for desert racing (Track/desert). It has an 18" rear tire with a heavy duty setup (see description for details). The bike screams and has a Tokyo mods carb mod with the 10x ignition mapping (currently set to a handlebar switch for smooth power and max power). Gas tank is a 3.2 gallon IMS dry break tank. V4 steering stabilizer included. Precision Concepts suspention, Bike is set up for 6'4" 175lb rider. Zero oil leaks and well maintained using a preventative maintenance method with the best new parts each time. Receipts for all items can be provided. About 20 hours on the rebuilt head. Carb just rebuilt. Starts cold in just 2-3 kicks. 100% reliable bike as long as you turn the gas on.  Current CA Red sticker and original title.
      Expand above to see details
    • By bigg_stevee
      I recently replaced water pump and seal after I noticed that my '02 CRF450R was spilling coolant on easy trail rides. After the water pump swap (which was successful), I noticed the same problem. It's interesting - the bike only spits coolant (I mean a LOT of coolant) after passing anything above 1/2 throttle. The bike makes this weird 'gurgling' noise, like trying to suck through a straw when your glass is almost empty. This is weird because I properly bled/ burped the radiators with coolant, and filled them to normal operating levels. The coolant spills through overflow hose. 
      anyways - I swapped the radiator because I thought maybe the bike was running hot. I purchased oversized radiators, bought a 1.6 radiator cap (with a temp gauge) and bought engine ice. The bike runs very very cool - the temp gauge allows me to see this. Still, the bike shoots coolant out of the overflow after going above half throttle, making the same weird gurgling noise when it does. Bike has all of its power, top end was replaced not too long ago. 
      I'm lost and don't know what is wrong with the cooling system in my bike. How do I make the bike stop shooting out coolant, and stop making the weird gurgle noise??? Any advice would help me!!! Thank you!