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Found 24 results

  1. I've done a little bit of searching and I can't seem to find a reliable source for the stock sprocket set up for my bike, 2008 KTM 250 XC-F. I bought it second hand with 13/50 which was great to learn with, lots of torque to the rear wheel and it lugs well with the 280cc Big Bore kit. My issue now is that I am beginning to advance in my riding skill and constantly find myself needing more speed. I top out at about 38-40 mph and in hare scrambles (straight open sections) and even on big MX tracks (XL double features) I need more speed at times. I am open to suggestions about what works for others but would also like to know what came stock on this bike. Thanks y'all! Mark
  2. Would anyone know the best gearing for desert, long ranges, I have 13/49 and I feel I can go faster, anyone know what I should use for more top speed?
  3. Appologies for the book but bare with me here, in need of some input... Ok, so i bought a wr250f it wasnt street legal i made it legal and got plated through south dakota. I did a baja designs enduro lighting harness kit with the stator modification. Put an fmf slip on exhaust on it and jetted the carb. I forget what jets i used and i put an air fuel mixture screw in it. Problem1.After my baja kit i put on it wouldnt start. Turned out that the solenoid under the seat was loose or something i pushed down on it when it was clicking and it started running again. Problem 2.Went riding, it ran great on the trails. Went riding for a day or 2 on the street, after a while the electric start stopped working and it became a bitch to kick over. It started making the same click noise like when the battery is dead under the seat. Idk whats up with that. Then on the street i was riding and the bike stopped having power in the throttle i would pin it full throttle and it wouldnt take off like it usuallt does. I pulled over, let it sit for 5min and kicked it over again and the power i had came back in the throttle. It did that 2 more times durring the ride and i went home. Do you think this is a computer issue, a carb issue, fuel air ratio issue. Im going to do an airbox mod on it thiss weekend maybe thatll help. Problem3. I ordered some rims and stuff from warp9 so i can sumo it out and i was curious on what size sprocket would make my gears longer and better so im not maxing my rpms out at 40mph. I can do a solid 65mph on the bike but thats like pushing it and im in 5th gear as soon as i hit like 30mph, id love 6gears but im trying to avoid regearing the bike and using a smaller sprocket in the rear and maybe a tooth or 2 bigger in the front i guess, i still wanna be able to pull wheelies. I feel like im gonna blow the motor if i leave it alone and just ride street with it. Mind you this was the wr250f=for off road use only. not the wr250r=street legal from factory, i live in nj. I should have just got the street legal one or a supermoto already done but i wanted to build one and make it custom for me. I already put alot of money in to it and dont even own it 100% yet so im not trying to get rid of it anytime soon. Im not even done with it yet.
  4. Hi guys, I'm currently using a 2017kxf250 at my local MX track for fun and fitness, but plan to race cross country next month with the same bike. When out trail riding in similar conditions yesterday i noted especially the very low top speed in 5th, perhaps 90kph ,With stock 13-50 gearing. Has anyone done much riding on a 250f mx bike with higher gearing, say 14-48 or 13-46, i am also weary of not having a low enough 1st cog for the odd ugly section. As it sits now i can predict me getting demoralized on the straights plus i hate holding bikes flat out . Any experience appreciated.
  5. Hello this is my first post and I just had a question. I have a cr85r and I am looking to get more top end speed out of it. I have stock sprockets on it but plan on buying knew ones. Just don’t know what tooth amount I should get on either of em. I am getting about 60ish out of it and am looking for like 65-68, just a little push. I am a 125 pound 14 year old if that helps anyone. Also the bike is being driven on usually flat pavement. Thanks!
  6. I have a stock 2009 KTM XC 200. I use it mainly for woods riding - singletrack, some doubletrack - and plan to start racing recreational harescrambles. Ideally I would have picked up an XCW version, but got a great deal on this XC. Lots of my buddies are riding KTM/Husky 250/300 TTs, and most of the time they are 2nd gear in the tight stuff. I find myself needing to be in 1st gear in similar situations, due to 2nd gear feeling too high sped, therefore stalling a lot. For me stalling is extra shitty because I have kickstart only. Sure, my buds have bigger bikes with tractor-like low end power. Yes, I am a new rider and need to improve my clutch work. Yes, I could try a heavier flywheel. No, I do not want a Rekluse clutch. So here's my question: I currently have the stock 14 tooth front sprocket and stock 48 tooth rear sprocket. Wondering if there's a better sprocket combination I could try to dial-in my bike for riding tighter/tougher singletrack in 2nd gear? I realize I'll have to potentially sacrifice some top-end speed, but that's okay, I rarely ride open stuff. Thanks for any ideas!
  7. Would you please help me find a place to buy a 52 or 53 tooth, cheap, steel rear sprocket for my 1991 XR250R? Sunstar online catalog only shows up to a 48 tooth for the pre-1996 XR250R's. ebay/amazon wants to sell me 48 tooth. I'm running 12/48 now.
  8. Let me start off by apologizing if this is a duplicate thread, at the time of writing the search function seems to be unavailable. When riding on road (the DRZ is my only transport) the bike seems to really hate 50 zones. Seems that 50 is right between 4th to 5th shift point, unreasonably busy in 4th and and borderline lugging on the flat in 5th, is this normal for the standard gearing? How do you guys get around this? I have messed around with jetting and mixture in an attempt to try and get just a little more power to cruise in 5th at 50 but it just either isn't to be or more likely I am not experienced enough to get what I am after. Extra relevant info. I'm a bit of a large fella, 110kg (240lb) riding an '08 E model, 3x3, rejet, standard 14:47 sprockets, 130/80-18 rear.
  9. Hi Folks, I have a 2005 Honda CRF250x with standard sprocket gearing of 14/53. It's time to change my chain and I found a DID 520VT2-114 Gold Narrow X-Ring chain on Amazon that I wanted only to find out my bike takes 116. The problem is this chain is unavailable in 116 is paractically unavailable (are they phasing it out??) I finally found it in one place and unfortunately they are charging $35, more like $50 with shipping. Apparently those two extra links are SOLID Gold ? It occurred to me that if I could shorten my wheelbase, enough, I could invest a little on sprockets (front one needs replacing anyway) and buy the 114 from Amazon and would save a lot of money on future chains ( assuming I like it)and the gearing. However , I would like to keep a either a 14/53 or 13/53 feel as I am more interested in low end acceeleration/torque than top speed. I'm assuming I'd have to drop 1 tooth in the front and at least a few in the back to meet the 114 requirement. Is this feasible options... or am I out of luck here? If yes, what are the required front/back sprocket tooth counts?
  10. eddster500r

    DRZ400 Mods

    2009 DRZ400sm I bought this bike with a little less then 600 miles. I have since put down more 60000 miles on the bike. I thought I would share a little about my bike and the modes i have been able to do. 1. Gearing I Run a 16 tooth front sprocket and a 37 tooth rear. And you can go all the way down to 35 tooth if you wanted to slightly modify the rear hub. I would advise against this. My opinion, a with mildly modified DRZ(exhaust and 3x3 mod) I would not go with taller gearing than 16-39 or 15-37. 2. Rear Tire, You can run up to 160/60 R17, My opinion 150/70 R17 is the best handling. 3. Rewiring Charging cable, by shortening and using a thicker gauge wire that is routed from the battery over to the starter relay and then back into the loom. As well as bringing down the Fuse AMP down to 15amp. 15amp is enough to operate 100 watts of light. 4. 4mm Stroker, Can be installed using the stalk piston and 91 pump gas. 5mm stroker needs to modify the crank case and replace the piston.
  11. Hey everyone, I have a stock 2018 crf250l and Im ready to dump money into it. I’m thinking of FMF exhaust with mega bomb headers, seat concept seat, warp9 wheel and tire setup, and a EJK. Just wondering what the best sprocket setup would be? I just want the most out of the bike I can get for fun street, wheelie stuff. Also, do I need to stiffen the rear shock?
  12. I am hoping to get some tips and advice on my recent purchase of a 2008 yz 250f. Before this bike I had an 02 wr426f. I switched to get a lighter bike that would be better suited for tighter trails and the track, and can definitely notice the obvious differences between the wr and yz. I am a novice at best, and am not an adrenaline junky either. I plan to do another hare scramble next year with the yz 250f after I get used to this bike. There is obviously a huge difference from the 426, and am wondering if i can close the gap between the two while maintaining some of the feel of the yz. Does this make any sense??? Do you have any suggestions on gearing or anything else that would help "smooth" out the low end power? I realize its already less intense than the bikes 2 stroke counterpart, but still wondering if there is anything that can be done? I do not need instant ripping power simply based on my riding style, but at the same time am not looking to putz through the trails and track. I was thinking of going up 1 tooth on the front sprocket, but from what I have read am now slightly concerned about that on the tighter trails that I ride. I don't feel the need to be the fastest rider on the trails or under any illusion that I will be getting "discovered" by anyone lol. I am 35 years old and weigh about 170lbs. I had considered dropping down to a 125, but think it wouldn't handle my weight well or might not hang in some of terrain that I occasionally ride. I appreciate any constructive advice!
  13. My 2014 KTM 500 EXC is pushing 510cc, but it's not making the perfect hill climbing bike. My brother's motocross 2013 KX450F is much better. His first gear is nice and fast, his second gear can be run quite slow but also very fast, and his 3rd gear can be run pretty slow and super fast. My bike can't achieve this no matter what sprocket combo I try. My bike wants to keep the range of the first gear so short that it is almost unusable and the same goes for 2nd. Then when it is time to shift into 3rd that gear is too spread out. I can be on the rev limiter for 3 seconds and when I grab 3rd gear it will bog on me. If you are wondering I really don't think anything is wrong with the motor so let's please try avoiding answers like - "get your motor checked out". So far the best combination I have found for the purposes of hill climbing are a 15T on the front and a 47T on the back. This makes first gear somewhat usable, and 2nd gear has a ton of power, but it hits the rev limiter almost always and then grabbing 3rd gear just causes a complete loss of power. What is going on in a transmission that is causing this problem? Is there any hope to altering something to get what I want? I am willing to spend big money to get it. Let's just say that I am willing to spend $2500 at the drop of the hat for a solution. And no...I don't want a motocross bike because I want the advantage of the bigger motor In the attached photo I hit the rev limiter about right there. And at that spot my brother is still accelerating in 3rd gear. It just doesn't make any sense.
  14. Got about 250 hours on my 18 EXCF-450. I've got my suspension dialed in- im a big rider. 1st gear wheelies effortlessly in any situation -as it should. 2nd - 4th gear cant wheelie at all, which is where I need it (mostly 2&3). Its utter shit. My 16 XC-f 350 would wheelie if a light breeze caught the throttle tube in any gear. I ride singletrack/Enduro. I only do practical wheelies to get the front up over logs, small pits, jumps-kickers etc... Dam thing flames out on quick throttle blips. I went down on the front sprocket from 14 to 13- Not much help, but 1st does respond quicker. Looking for advise to get the front end up with a blip and zap. -Praying that the $1000 Vortex ECU isn't the answer. HELP!
  15. Hey there dudes and dudettes, Got me a pw80 to mess around with and I'm having a problem with it. It idles fine, runs in first pretty decent but as soon as it's shifted into 2nd the acceleration drops. It feels like I have a one speed bike. Any ideas what it could be? I have already done the clutch mod, i'm running 6 ball bearings instead of the standard 12. Thanks!
  16. anyone who has converted a 250 dirtbike to supermoto knows the stock gearing with sprockets and everything sucks for road use, this being my first conversion i had no idea until i actually took it on a street ride on the dirt tires and stock gearing... i havent yet gotten my smaller sprocket but how much will going from the stock 50tooth sprocket to a 43tooth sprocket help for street riding so im not rev limiting the shit out of my bike at 50mph. also debating on going a tooth or 2 bigger on the front... im already stuck with the wr250f model not the wr250r model and ordered rims and everything for it and put mad money into it so anything to help and words of wisdom would be appreciated.
  17. Hi guys I have a question I wanna buy sprocket , chain and I choose to go 49-13 I know the size of my chain needs to be 114 (rm 125 2004) but can I choose a standard chain or I need x ring , o ring blablabla...?? Im not doing anything competitive I just go casually in woods and tracks thanks in advance
  18. Hey, Looking to regear to 15/45 which puts me at 3:1 Reason being I am moving from a hilly woods area to more flat open country. Anyone run this combo? Results on top speed? Thx!
  19. Hi I have a KTM 250SX and its a nice bike, a 2005. The problem I have is it feels kinda slow compared to other bikes, like my friends 4 stroke 250s. I don't know the exact speed of it. It is definitely a fast bike for what it is, but there is a "spare" tire with a large sprocket on it. Maybe the bike feels slower because of that, and I don't have much experience with sprockets and gearing in that way. That might be the problem. I don't know the exact difference in sprocket teeth between the two sprockets, but I never had the normal sprocket on. It pretty large in comparison to the other, from what I know. I didn't know sprockets would make a significant difference in speed. Is this why?
  20. Hello all hope I am posting in correct topic area. I have a 1985 Honda XL350R Dual carburetor with stock gearing 14 front 40 rear. First thing, my fuel tube was leaking so I bought an O-ring and gasket kit to repair. Tore down carbs and cleaned the hell out of them. I then eagerly test rode. Fired up in two kicks and ran like a champ. A day or two went by and I then wanted to take it for another spin. Started right up two or three kicks. Awesome! But after riding for about 5 to 10 minutes throttle response was gone. Idles fine, but when put in gear and give it 1/4 throttle it falls on its face and dies if I don't let up. What could cause this ladies and gents? Any knowledge and suggestions are very appreciated. Next question is gearing. I plan on doing 90% trail riding with it and if I get good enough would like to start practicing some tougher enduro stuff. Will this stock gearing work for me or should I re-gear to get a little more torque. I am new to the dirt bike/enduro world due to wasting 10 years on road bikes lol. Thanks, AVP89
  21. 2008 crf450r- So here’s the deal. I’ve always run 13/48 gearing with the stock chain length of 114 links. Broke a chain on worn sprockets on a local ride, so In a pinch, I bought a 14/51 renthal sprocket set with new EK Gold O-ring chain. Knowing that the gear ratio is near identical between 13/48 & 14/51 (With the only difference being a longer chain) I assumed it would be a perfect fit. Since I had a fairly worn tire at the time, the setup worked out perfect with the axle blocks and adjusters slammed all the way forward. This wasn’t ideal, but I figured the sprockets and chain would wear, leaving me centered in the adjustments by the time I installed a new tire. Fast forward to now, I just installed a new 120/80/19 rear tire (same as before) and am having a major tire rub issue on the mud flap being that it is a new tire and much taller knobs (It is unrideable) With this chain Length and sprocket size combo, I had no choice but to run it short before, because if I had left it a proper link longer I was already at the extreme other end of the axle adjusted all the way out to its limits. With this 14/51 gearing theres is no happy medium in the adjustment range. It’s always too slammed or too extended on the swing arm. As I see it, my only options are to drop down a tooth in the rear ( if that’s not enough maybe two?) but I’m worried I may encounter a similar problem. Adding another masterlink is not an Option, but could be and I understand half links are a big Nono. I may just ditch this nearly new chain and sprocket combo and revert back to the tried and true 13/48 for what used to be an ideal adjustment range. Has anyone else had this problem running 14/51 gearing? And what have you done to solve this problem? is there an ideal gear ratio and chain length as to not run into this problem ever again? Im hoping I can find a setup that leaves me plenty of room for dirt and paddle tires so I can always swap without worrying about gear ratios and clearance issues. I’ll try to add pictures this evening if that helps at all.
  22. Currently have 14f-51r sprockets on my "18" YZ250X, would like a lot more low end, particularly in 3rd where I find myself in most of the trails/ST and races I do here in Ga......I know one tooth on front is like 3 on the rear so looking at significant change. I will lose some top end mph but can't remember topping out in 5th gear once.... would I be going way over board if I went to a 13 front and a 52 rear? I already have a 52 tooth rear ready to go on, but changing both sprockets and chain at same time and don't want to get the 13 front without some input from more exp riders. Pic is for attention and yes it is in the house....doesn't everyone keep their bikes in the house?
  23. I am looking to replace sprockets and chain on my 04 yz450. Pricing them out and looking. The 15/47 kit is half the price of the 14/48 that is currently on my bike. My question is what would happen to my low end torque and my top speed? I still want it to be froggy in 1st 2nd and some of 3rd like it is now. Remember the yz450 is a 4spd. Any help is seriously appreciated! Thanks!
  24. Hi got my son a ktm mini adventure and its in dire need of new chain n sprockets there is zero info online. Currently it has a 12 front and 46 rear! I cant find anywhere in the uk that sells 46 dished but can find a 48 Will a 12 front 48 rear be good gearing? What have been the best gearing combos for these bikes you know of??? thanks ash
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