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Found 17 results

  1. 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.
  2. In my search to setup my DRZ and XR as I wanted, I found endless topics on what gearing and handlebar setups are the best. Not only on the DRZ and XR forum, but all of them. There is really great advice but it always depends on what the other rider prefers, which is sometimes hard to gauge. While looking for my perfect setup, I found these websites, that helped me a lot. I am not affiliated with them or anything like that, they're tools I found that work really well. I haven't seen these linked on this forum yet, so I thought I would. The first is www.gearingcommander.com. It is a calculator for you gearing, obviously, but is has so many options and an enormous database of models. It lets you compare three setups, where you can change pretty much everything and gives info on top speed, rpm in gears at a certain speed, what -1 or +1 would mean for speed or rpm, but also the number of chain links needed, chain speed and number of chain contacts with the sprocket. For the DRZ you can even change the actual ratio for the gearbox, if you have an ACT box installed, to see what the effect is. The other is www.cycle-ergo.com. A calculator for riding position. After choosing a bike you can adjust handlebar, foot peg and seating position, seat height, and body posture. There's an option to view with a pillion, and to the enter your inseam and have the feet on the ground to see if you will reach. None of this info says anything about how it will feel to ride, but it lets you compare your current setup to what is suggested and get an idea of what to expect. The perfect setup is wholly subjective, so it can be hard to decide what advice to follow and this lets you see it with your own eyes. Saved me ordering a bunch of wrong parts. For the Japanese brands, if you're looking for high quality parts fiches, OEM parts numbers or OEM parts that are hard to find, www.cmsnl.com is a good spot to look. Again, not affiliated, just helped me out a lot. It is easy to find the part number for something you need, then look for that part number to what bikes have it. Sometimes the same part is much cheaper if ordered for a different model. They even stock the ball and spring that lock the passenger pegs on the DRZ-400S and SM to give you an idea of their selection. They consolidated all Japanese motorcycle parts dealers in the Netherlands, to make finding parts easy. They've been expanding into Europe ever since. The non-Japanese selection is growing, but isn't as big yet. Finally, a good reference is www.motorcyclespecs.co.za, which a database with all the basic factory specs for pretty much every bike ever made for every model year and variation, including a review on many models. I found it useful to see the differences between model years and variations, when ordering parts. Hope this helps someone with setup, riding comfort and parts!
  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. 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
  5. Hello, I posted a couple of weeks ago about DOT tires for the 450X. I went with the Michelin AC-10 tires which on the road seem good. a little light but good. they have not seen dirt yet because i am trying to make the bike street legal which so far is a breeze. (have not gone to DMV yet) Any way was looking for advice on front and rear sprocket combos that will give me a good combination On/Off of the road. want the torque when need but need to keep out of the way of traffic without rpm winding to high. Thoughts??
  6. 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.
  7. Hi, I need some help everyone I have a yz250f I am just riding trails with it I like the bike but has way to much torque, what size sprockets should I use to bring down the toroque a lot ? 13/47 or is 13/45 to small ?the bike has stock sprockets of 13/50 any advice would be great thank you!
  8. OK, it's sprocket and chain time on the trusty "backup/buddy/fire road bike". My 2001 WR250F. I was given a couple of new 12t sprockets by a pal, who HAD a WR, but no longer. Free stuff! Typically, this bike has 13/52 sprockets. A quick trip to http://www.sprocketcalculator.com/ tells me that if I use a 48t rear sprocket I'll retain the ratio I have, and LOVE for the higher speeds/less challenging terrain that I keep this bike around for. So, other than the sprockets will wear, I dunno, 6.2% faster, is there a downside to this?
  9. Hello guys , I have a suzuki drz400sm which is a 2009 model recently I purchased a rear sprocket which was a JT 41T , but I found that it did not fit to the rear sprocket hub of the bike and my drz has got the EXCEL TAKASAGO rims in it . How can I find one that fits and what sprocket brands and where can I buy it . I have attached pics of the current setup , please help me
  10. I need help choosing my sprockets, the chain im going with is the DID 520 VT2 Narrow Enduro Racing X-Ring Chain which i have heard is very good and last a long time. For sprockets im looking at iron man but the size is a little concerning. If anyone has experience with these how are they any complaints, worth the money? Or is there something Better out there. Is the iron man front Sprockets good or is there a better brand for the front. Thanks
  11. 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!
  12. Years ago I was told to change both together or they will be toast in no time, I've always done it so not sure if it's true. My oring chain is beyond old and beaten, do I need to change both or only chain, the sprocket looks really good!
  13. 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?
  14. So my little guy broke his chain last week, the master clip came loose and bent the pins. IIRC OEM was 14/35 w/90-link chain. Wanted to ask whats typical for a chain/sprocket upgrade for kids. Do folks drop down to a 13 or up on the rear to a 37? Do either require a longer chain? Don't want to loose too much on the top end. Bump it a bit or just replace with another OEM chain? Riding is pretty much everything from the backyard, to sand, gravel, rocky river beds, dirt trails and miles and miles of nearly abandoned back roads on visits up north where he pretty much goes full throttle until the tank empties or a photo shoot. ? He started on a 50 at 4 and on the 110 at 6 and turns 9 next month. We'll be riding Hatfield McCoy system in VA and AOAA in PA quite a bit this year as well as 2 weeks in Newfoundland and 1 week in Nova Scotia, Canada in August. Thanks
  15. 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
  16. Got a weird one here! I recently fitted a new chain and sprocket set super sprox and RK chain. I had the chain slack absolutely perfect or as close as possible the wheel was aligned all that jazz basically I had done a good install job. After riding for a moto 10-20 mins I noticed the chain had become ridiculously tight!! It had a tighter spot for sure but the entire chain had become lets say from 3 fingers tight to maybe 1 and a half. I had to run the chain ultra-loose all day to compensate for the tight spot. After removing the chain there are now tight feeling links, the sprockets do not feel warped and wheel alignment is good! Wtf is going on lol this has happened 2 times now cleaned and lubed to a good standard
  17. I’m looking to get a new chain and sprockets on my 07 Cr250r. My question is will O or X ring chains rub away at the cases of the last generation CR without a spacer? I’ve ran O and X rings on my 08 CRF450r and ended up with a decent rub mark from not using a spacer... What’s everyone’s preference on chain type/brand for these CRs? Also a recommendation for sprocket gearing? Sandy/loose dirt 50” trail rider here. I believe I’m running a stock 13 and 48, which to me seems to top out extremely fast on straight aways. Even next to my buddy’s 03 it seems like he’s got a few mph on me....?
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