Unofficial Royal Enfield Community Forum

Royal Enfield Motorcycles => Bullet with the UCE engine => Topic started by: SimonT on April 27, 2011, 01:30:35 am

Title: Taller gearing?
Post by: SimonT on April 27, 2011, 01:30:35 am
Does anyone else think the C5s gearing is quite short? it just feels like the gearing doesnt utilize the UCEs best asset.... torque.

on the highway it seems to really be revving to go 110kmph (about 70mph)
Title: Re: Taller gearing?
Post by: Ducati Scotty on April 27, 2011, 04:17:34 am
That's where the vibes are worst.  65 is more mellow and so is 75.  You could change the gearing a little to lower the vibes at those speeds, I think a few people have on the G5.  Top speed seems to stay about the same.

Scott
Title: Re: Taller gearing?
Post by: Tri750 on April 27, 2011, 04:49:03 am
I'm pretty sure we have an even bigger countershaft
sprocket in stock.
it's one tooth larger than even the C5.
normally that reduces hiway rpm by 3to 5 hundred.
Title: Re: Taller gearing?
Post by: SimonT on April 27, 2011, 04:51:40 am
that would be pretty good....are they easy to come across (i am in australia).
Title: Re: Taller gearing?
Post by: prof_stack on April 27, 2011, 05:14:04 am
Does anyone else think the C5s gearing is quite short? it just feels like the gearing doesnt utilize the UCEs best asset.... torque.

On the highway it seems to really be revving to go 110kmph (about 70mph).
On the ride this weekend I was thinking how correct the C5 gearing is.  Going over Tiger Mountain near Seattle I had it in 5th with throttle wide open at about 60mph (leaning forward, heh) to get over the summit.  4th gear would have probably been too high in revs to hold that speed. 

Today I blasted up a curvy incline towards home and noticed how well 4th gear pulled at 30mph.  So, for my kind of riding the C5 gearing is fine. 

But I will admit that for my previous 5 motorcycles I always wished for a taller cruising gear on the highway.  With the C5 I haven't had that wish yet.

Title: Re: Taller gearing?
Post by: P. Schraub on April 27, 2011, 12:59:27 pm
Hello SimonT,
        I know exactly what your talking about ! My G5 Deluxe came stock with a 17 tooth counter shaft sprocket and I had it upgraded to 18 tooth. This put the engine in a very comfortable rpm range. I believe your C5 comes stock with an 18 tooth sprocket, but has 18 " wheels instead of the 19" wheels that the G5 has. Hopefully, there might be a 19 tooth counter shaft sprocket available that will fit with proper clearance.
Title: Re: Taller gearing?
Post by: Maturin on April 27, 2011, 01:17:24 pm
There are 19-tooth-sprocktes for the C5, and there barely fit in, but they fit. You can order them from Hitchcock´s  or mabe even NField Gear.Check out the forum about sprocket change, though, for some of us had difficulties.
Title: Re: Taller gearing?
Post by: r80rt on April 27, 2011, 03:22:42 pm
On the ride this weekend I was thinking how correct the C5 gearing is.  Going over Tiger Mountain near Seattle I had it in 5th with throttle wide open at about 60mph (leaning forward, heh) to get over the summit.  4th gear would have probably been too high in revs to hold that speed. 

Today I blasted up a curvy incline towards home and noticed how well 4th gear pulled at 30mph.  So, for my kind of riding the C5 gearing is fine. 

But I will admit that for my previous 5 motorcycles I always wished for a taller cruising gear on the highway.  With the C5 I haven't had that wish yet.


I agree with the prof, here in the Ozarks the C5 stock gearing is perfect for these steep twisty roads.
Title: Re: Taller gearing?
Post by: Ducati Scotty on April 27, 2011, 05:40:48 pm
+1.  I like the C5 as it is but I don't do long stretches on high speed roads.

Scott