Jump to content
Sign in to follow this  

400S and SM gearing for an easy swap?

Recommended Posts

I just bought a set of rims from a family friend and I should be getting them in a couple of days

My dike is an 01 400S

Was wondering what gearing people use so that you can just swap from the SM to dirt wheels ?

To make it easer for when I want to swap them out for the weather,dirt,ect.

What size front sprocket is the best to use ?

Currently got a 13/44 on the bike

And a 48 sprocket t

Just put on the 44 a few weeks back

Previous owner had a 13/48 rode it for 2.5K miles like that

Planning on putting a 14 or 15 back on the front

Edited by B S

Share this post


Link to post
Share on other sites

I run 15/44 sm and 15/48 for dirt so I don't have to take links out of the chain. It's a bit of a compromise for me. I have an sm but I find myself in the woods much more than on the street. The 15/48 is pretty good for most trail riding. I wish i could go 14/48 or 14/50 sometimes. And the 15/44 on the sm wheels is more fun around town than the stock 15/41 but it's a bit buzzy on the highway. I'm thinking pretty hard about buying the wide ratio gears and installing then over the winter.

Share this post


Link to post
Share on other sites

I just bought a set of rims from a family friend and I should be getting them in a couple of days My dike is an 01 400S Was wondering what gearing people use so that you can just swap from the SM to dirt wheels ? To make it easer for when I want to swap them out for the weather,dirt,ect. What size front sprocket is the best to use ? Currently got a 13/44 on the bike And a 48 sprocket t Just put on the 44 a few weeks back Previous owner had a 13/48 rode it for 2.5K miles like that Planning on putting a 14 or 15 back on the front

 

 

15/47 is a really good compromise, for the 17" wheels and the 21/18 wheels. plenty of wheelie potential (street wheels) and plenty of hill climbing guts (off road) when needed. 

 

if you find this isn't low enough for you, here's what i run with two different chains for longevity and simplicity's sake:

no roads: 14/52 (21/18 wheels) top speed around 60mph

on road: 15/39 (17" wheels) top speed around illegal

 

cruising dirt/gravel roads in 21/18 mode with this gearings means instant wheelies without effort. 

cruising streets in 17" mode means never feeling over revved. 

  • Like 1

Share this post


Link to post
Share on other sites

I ride 95-99% on the street but i bought big heavy 50-50 tires because riding on gravel was a nightware with the street slicks.

Still lots of fun but the acceleration was lacking (for my hooligan ways), so I went with a 13T counter sprocket!

Oh man! Talk about acceleration. Took a hit on the top speed. 115-120 km/h (71-74 mph) maxed out!

 

If I were riding in the woods and much more technical stuff, I would go even lower gearing.

Idling with the clutch out with the 15T is around 15 km/h.

Share this post


Link to post
Share on other sites

I ran my 21/18 Wheels with the stock 15/44 sprockets for the first 6000 miles getting used to the bike . I just dropped down a tooth up front to see how I'd like it . It was an improvement Offroad in the tight stuff , but on the road I deffinetly prefer the 15T . At 70 mph I was turning about 7000 rpm. My new 47t arrived today , I'm going to try it with a 15 t to see how the rpms compare . I figure Ill end up using 14/47 for dedicated trail use . And put the 15 /47 to use for day to day dual sport use . Then when Santa brings me some SM wheels I should have most situations covered (most) ultimately I see 3 sets of wheels . 1. Offroad only. 21/18 with Bad arse knobs 2. Dual sport 21/18 with long distance enduro tires. 3 . 17" SM wheels with 90/10 tread or something like that . Two chains will most likely be necessary . But if I can get away with just swapping front sprockets with wheel changes somehow I'm willing to compromise on the gearing a little .

Edited by Masshole DRZ

Share this post


Link to post
Share on other sites

i have instant swap over with the same chain with 15/44 SM and 15/47 DIRT

 

i definently dont need anything lower for the dirt in my area, 2nd gear is most of the stuff im in, 1st in the single track where i ride, 3rd in open fields sometimes getting into 4th

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

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

Reply with:

Sign in to follow this  

×