Revo SX LH low gears

[justbassin4fun]

A fello in another forum recomended I join here and ask a member "pro reel" for some info.

I have a 2011 Revo SX HS LH model 17 02 20/46 AK(reel foot info). that I want to convert to a deep crank reel with lower gears.(I know, I know! I should have bought the BPS PQ! )

I did try contacting purefishing, But the info I was give was a miss. I ordered abu#1138198 gearset to only find its for a RH reel and the pinion is too short.

What I need is the proper part number for the gearset(or individual gears) for the LH reel. Pretty sure its going to be the same as the STX with the Infini II Spool Design.

TIA

By the way nice place you have here!!!

[carolina-rig-01]

I think Pro Reel and I talked about it a while back and if I remember correctly he told me that he can put Revo Winch gears in a Revo SX. The Winch is a great crankbait reel, in fact I have one on all of my cranking rods and I can throw deep divers all day long with minimal fatigue.

[justbassin4fun]

Thanks for the reply,

I think the winch pinion gear is tool short for the newer SX's with the Infini ll spool design.

I did look at the winch, But went with the SX hoping the mag brakes would allow casting the lighter baits. Plus its a better color match on a Vendetta. I bought this set up originally for top water duty, But am now thinking its better suited for crankin. Not to mention that my old 4601-C3 has finally died and its cheaper to convert the SX to crankin duties that to fix the old C3(for now).

[carolina-rig-01]

I use Winch's for all of my deep diving crankbaits but I use Revo Sx's for everything else. I just built a cranking stick for squarebill crankbaits and I did put a Revo SX on it because a low geared reel isn't needed for squarebills. I have a few of the new SX's and a lot of the older ones and I have noticed that the newer ones seem to be a little more tricky to cast, especially with lighter baits.

[pro reel]

I already answered this in another forum, but here it is again. The original revo SX used a one piece spool shaft. It was the same design as the spool used in the winch. Thos reels could swap gears and I did put winch gears in the original SX. The new SX uses the 2 part infini system. Abu didn't make any reels in the low gear ratios that had the infini spool so there are not any low ratio gears available that will fit in the nes SX or the STX. The difference is the length of the pinion gear. The only way to make your SX into a low ratio reel would be to also change the spool and use a spool from an orginal SX that isn't the infini system. You may have also heard that some PQ geras will swap with revos, thats true, but not with the infini spools, only the solid spool shaft spools.

[Tavery5]

Kevin, have you ever counted the teeth on the pinion gears of both the newer sx and a winch, If the pinions have the same number of teeth, you may be able to get away with just changing out the main gear.
Just a thought.

[justbassin4fun]

Abu does have the lower gear set for the SX/STX for the right hand reels. You could use abu#1138197

Funny they don't have them for the lefty reels! One of the reasons I went Abu was because Shimano left the L-handers out in the cold with gear ratio's choices. Sad Abu might be doing the same????

A little more expensive but still a do-able project. I could order the winch gears and a spool from an 09 SX reel. Or Just order a winch in ugly blue(yuk)! The BPS PQ is also a nice option with 5.2 or 4.7 gears in LH models.

Thanks for all the replies!

Edit: I wonder if there is a gear set number for the left handed s/sx(09)? Right hand part number is abu#1138198.

A friend has an 09 SX that is benched. he said, I can steal the spool. Now I just need the gearset.

[lilmule]

Why would a 2 year old reel be benched?
I know nothing of this new fancy stuff,still using my 15 year old lews 4/7/1 gr.

[pro reel]

Originally Posted by Tavery5

Kevin, have you ever counted the teeth on the pinion gears of both the newer sx and a winch, If the pinions have the same number of teeth, you may be able to get away with just changing out the main gear.
Just a thought.

The main gear and the pinion both change sizes as they go up and down in ratio in the revo series. The 7.1.1 set has a large main gear and a small pinion gear. The winch is the oposite, it has a large pinion gear and a smaller main gear.

[pro reel]

Originally Posted by justbassin4fun

Abu does have the lower gear set for the SX/STX for the right hand reels. You could use abu#1138197

Funny they don't have them for the lefty reels! One of the reasons I went Abu was because Shimano left the L-handers out in the cold with gear ratio's choices. Sad Abu might be doing the same????

A little more expensive but still a do-able project. I could order the winch gears and a spool from an 09 SX reel. Or Just order a winch in ugly blue(yuk)! The BPS PQ is also a nice option with 5.2 or 4.7 gears in LH models.

Thanks for all the replies!

Edit: I wonder if there is a gear set number for the left handed s/sx(09)? Right hand part number is abu#1138198.

A friend has an 09 SX that is benched. he said, I can steal the spool. Now I just need the gearset.

I don't know what reel this gear set comes from. The revo STX is not available in a low ratio, only the winch is available in a low ratio. This #1138197 gear set is part of Abu's custom parts. It seems it's only available for right hand reels at this time. It also isn't something that they have promoted, but it is listed in the parts catalogue.
Ordering left hand gears from a winch was and still is the only way I knew of to build a low ratio left hand SX, but it only works with the 09 spool. I think that if you can get an 09 spool, you will find that there is very little difference in casting ability between the 09 spool and the infini spool. Truthfully, if you know how to polish the spool shaft ends with ultra fine paper and polish, clean the bearings good and use good oil, the solid spool shaft reels cast better than the infini spools do.

[justbassin4fun]

Originally Posted by lilmule

Why would a 2 year old reel be benched?
I know nothing of this new fancy stuff,still using my 15 year old lews 4/7/1 gr.

He upgraded to more expensive gear. I need to go over and look thru what he's got. He does spend a lot of time on the water, So these reels have lots of time on them.

Originally Posted by pro reel

I don't know what reel this gear set comes from. The revo STX is not available in a low ratio, only the winch is available in a low ratio. This #1138197 gear set is part of Abu's custom parts. It seems it's only available for right hand reels at this time. It also isn't something that they have promoted, but it is listed in the parts catalogue.
Ordering left hand gears from a winch was and still is the only way I knew of to build a low ratio left hand SX, but it only works with the 09 spool. I think that if you can get an 09 spool, you will find that there is very little difference in casting ability between the 09 spool and the infini spool. Truthfully, if you know how to polish the spool shaft ends with ultra fine paper and polish, clean the bearings good and use good oil, the solid spool shaft reels cast better than the infini spools do.

Anyway to get a copy of the parts catalog? I appreciate all the tips you have given me.

Thanks!

[BigBassin144]

You could always get a winch and have it painted whatever color you want!

Kevin, you mentioned the size differences in the main and pinion gears for the two gear sets. I didn't know this prior to the recent gear swap in my Zillion and was surprised to see such a big difference. Any idea why they do this? Is the larger pinion needed to fit enough of the larger teeth used in the low gear?

BB

[pro reel]

Originally Posted by BigBassin144

You could always get a winch and have it painted whatever color you want!

Kevin, you mentioned the size differences in the main and pinion gears for the two gear sets. I didn't know this prior to the recent gear swap in my Zillion and was surprised to see such a big difference. Any idea why they do this? Is the larger pinion needed to fit enough of the larger teeth used in the low gear?

BB

It's physics. Where is no fear, he could explain this better. The the only way to put more teeth on the outside of a round gear, is to start with a bigger circle. You could probably get more teeth on the same size circle by cutting them smaller, but that would be weaker. So, if you think about the design of a fishing reel. The center of the main gear is fixed to the crankshaft, you can't change it's location without redesigning the complete frame of the reel. Then the pinion gear is fixed to the location of the spool shaft. it can get bigger or smaller, but it also has to stay in the center. So, if you put more teeth on one of those gears, it gets a bigger circumference, you then need to make the other gear get a smaller circumference, or they wouldn't fit together without moving one over. In a low gear ratio reel, the pinion gear will be bigger than the pinion gear in a high ratio reel. And in those same 2 reels, the main gear will be smaller in a low ratio reel and bigger in a high ratio reel.

[Tavery5]

Kevin, I understand what you are saying, but I don't know it to be entirely accurate, I think it was on an ABU reel if I remember correctly but the only difference between a 7.1:1 reel and the 6.4:1 reel was 1 tooth difference on the pinion gear, the main gear had exactly the same number of teeth. If I remember correctly is was something like the main gear had 71 teeth.

71/10 = 7.1 71/11 = 6.4 you could get a 5.1 gear ratio with a 14 tooth pinion 71/14= 5.1

While the size of the pinion gear would be slightly larger with more teeth, you do not need to adjust the size of the main gear to accommodate this, you only need to cut the shaft of the pinion gear a little smaller in dia, I am talking the area between both gears on the pinion.

anyway, something to think about.

[Tavery5]

Ok, because this interested me so much and I needed to clean a couple of reels anyway, I tore down a couple of Revo STX's, one in a 7.1:1 and the other a 6.4:1.

Counting teeth on the gears was difficult to say the least but after repeated attempts here is what I come up with.

7.1:1 78 tooth main 11 tooth pinion, 6.4:1 77 tooth main 12 tooth pinion.

I may be off a tooth on the main gears but I counted a couple of different times and was able to get the same results, I also measured with a mic. and there is a size difference in the main gears as well as the pinions. the area between the gears on the pinion is identical.

Just thought it was interesting

[justbassin4fun]

Originally Posted by Tavery5

Ok, because this interested me so much and I needed to clean a couple of reels anyway, I tore down a couple of Revo STX's, one in a 7.1:1 and the other a 6.4:1.

Counting teeth on the gears was difficult to say the least but after repeated attempts here is what I come up with.

7.1:1 78 tooth main 11 tooth pinion, 6.4:1 77 tooth main 12 tooth pinion.

I may be off a tooth on the main gears but I counted a couple of different times and was able to get the same results, I also measured with a mic. and there is a size difference in the main gears as well as the pinions. the area between the gears on the pinion is identical.

Just thought it was interesting

You got me all coureous too! I counted the gears I picked up for the rh winch. I got 13 on the pinion and 75 on the main.

I went over to see what my friend had. He had the SX in RH, And he also had an S in lefty. I snagged that for $20.00 and he gave me the SX for parts. The SX is seized. Used in salt water and not cleaned??? But I think I can fix it. The S was just dirty and sloppy. After a good clean and lube, It seems pretty smooth again. Gears and bearings should make it LN.

I think I will just put the winch gears in the S and call it a day. I do prefer the cent. brakes anyway. I'll fix the SX up for my son.

[nofearengineer]

Changing tooth count on a gear set is a very tricky business, especially when the distance between gear axes is set, as it is in this situation.

The thing you have to remember, is it is not just a numbers game, but a geometry game. The teeth from two gears have to have the same geometry, whether it be involute, epicycloidal, etc, in order to mesh properly. You can't just make the teeth smaller to fit more on the same diameter gear.

The real wonder of a gear set is it behaves like two wheels rolling against each, other, but has mechanical linkage, so it can't slip. If the teeth are properly designed, the two gears are actually "rolling" against each other in 3-4 places at once, and not rubbing or sliding.



It costs more to have multiple tooth designs, from a manufacturing, and parts overhead point of view. The end result is, there are only a couple of gear ratios that are reasonably possible to put into a reel without a major design change. The ratios are typically quite far apart; i.e. 4.6, 6.4, 7.1. To make smaller, subtler changes, you'd probably have to look to fit another manufacturer's gears into the reel, because they use a different tooth profile.

[justbassin4fun]

Neat animation nofearengineer!

I know many of these reels are made by the same factory for different brand names. I never put them all together, But certain ratio's avaliable in one brand may fit others. Pro reel can weigh in here. I'm sure he's seen more of what fits and what models can exchange bits, pieces, parts!

I know I will be searching tag sales to find Pinnacles, Pfluegers and others for spare gears. I have seen reels go for $5 bucks that worked fine. Might be worth a shot to get a $30+ gearset out of it???

[pro reel]

Originally Posted by justbassin4fun

Neat animation nofearengineer!

I know many of these reels are made by the same factory for different brand names. I never put them all together, But certain ratio's available in one brand may fit others. Pro reel can weigh in here. I'm sure he's seen more of what fits and what models can exchange bits, pieces, parts!

I know I will be searching tag sales to find Pinnacles, Pfluegers and others for spare gears. I have seen reels go for $5 bucks that worked fine. Might be worth a shot to get a $30+ gearset out of it???

yes, many reels are built by the same company and sold under various brand names. Some of those companies also build reels under contract for other stores. To save money from design, set up and tooling, it makes since to use some of the same parts or at least parts that are the same sizes but different materials. Therefore, you can find parts that will interchange from reel to reel, the key is to stick with parts from the same design. Check frame sizes to see if they match, if they do, then many of the parts will also. The difference here was a major change in spool design so the pinion gear is very different from one reel to the other, but the main gear is the same. Gears have to be a matched set though, so it just won't work unless he can find a left hand reel that has the infini spool and has the ratio he wants. I don't think anyone has built one yet.

[justbassin4fun]

Kevin,

I don't think I will find any cheap reels with the right pinion for the Infini ll spool. But after paying $36.00 and change plus $12.50 shipping for the winch gears? I'll be keeping an eye out for reels that might have good gears. Even if its just for some spare 6 to 1 gears!

I wounder if the Quantums will fit the older Revo SX RH? I'd like to get the SX to 7 to 1. I also have a Revo S that could use the 7 to 1 gears!

[BigBassin144]

I'd stick to gears of the same brands when switching them out.

BB

[Jigger]

if your reel were right handed, I'd trade you a like-new Wench for your SX. I don't like the 5.4-1 gear ratio even for cranking.

[justbassin4fun]

Originally Posted by Jigger

if your reel were right handed, I'd trade you a like-new Wench for your SX. I don't like the 5.4-1 gear ratio even for cranking.

Thanks for the offer! I see new SX RH on fleabay for $125 shipped. You could sell yours on there too. Or the classifieds here? I am sure you'll get some nice coin for it.

[justbassin4fun]

I have been digging through the PDF's on the revo's. I see where they get the RH 5.4:1 gears for the STX reels. Pretty sure they come from the Revo Toro. Its only available in RH.

The Revo Toro winch is available in LH version. So maybe the 4.6:1 toro winch gears will fit the lefty SX/STX with Infini II spool.