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IGH -- Sturmey Archer XRF5(W) hub questions

Old 08-07-17, 09:08 AM
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IGH -- Sturmey Archer XRF5(W) hub questions

I was just on the Sturmey Archer website and it looks like they are now only doing the 5sp hub with rotary shift mechanism...? When did they drop the traditional center axle shifting setup?

Well drat. I have a X-RF5(w) hub on a bike I just built and have a few questions.

What axle size (diameter)? 13/32"?

TL;DR: Because I'd like to know about two parts -- the shifter side axle nut with shift adjustment window and the anti-rotation washer. Looking for correct parts to order, parts numbers would be even better...

Longer story: Currently have a bike built up with and X-RF5(w) freewheel hub. At the rear, it's got the Fulcrum Lever with Locating Washer and the plastic Gear Selector Guide assembly. Kinda wonky and my heel hits the whole assembly. Would like to convert to a Guide Nut, preferable short, and add a Lock Washer to the drive side.

Will the Guide Nut affect shifting performance vs. the Gear Selector Guide? Manual for the hubs show both setups, so I'm wondering if anyone has any real life experience comparing the two. Will it make a difference, short vs. long guidenut? Would prefer short, based on my heel-strike issue. And, which Lock Washer would I need to make up the difference with the Fulcrum Arm with Locating Washer delete?

Thanks.
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Last edited by mconlonx; 08-07-17 at 09:13 AM.
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Old 08-07-17, 09:17 AM
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[edit] ... Dan , as I was writing, , got this ..

I just found the manual for you..

S-A USA office, is in California with a phone to answer the when they added the new product Q&A ..
(But I doubt it matters much)

(the pull chain 5 speed hub (still in the catalog) seems to be adding a hubshell sprocket, to use as a counter shaft to drive a tricycle axle cog)


The manual: https://www.sturmey-archer.com/files/...ARY%20HUBS.pdf


[ don't own your chosen hub, myself (Sachs i-9, S-A AW3/BSR & a R'off) ]


...

Last edited by fietsbob; 08-07-17 at 10:45 PM.
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Old 08-07-17, 09:21 AM
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Originally Posted by mconlonx View Post
I was just on the Sturmey Archer website and it looks like they are now only doing the 5sp hub with rotary shift mechanism...? When did they drop the traditional center axle shifting setup?

Well drat. I have a X-RF5(w) hub on a bike I just built and have a few questions.

What axle size (diameter)? 13/32"?

TL;DR: Because I'd like to know about two parts -- the shifter side axle nut with shift adjustment window and the anti-rotation washer. Looking for correct parts to order, parts numbers would be even better...

Longer story: Currently have a bike built up with and X-RF5(w) freewheel hub. At the rear, it's got the Fulcrum Lever with Locating Washer and the plastic Gear Selector Guide assembly. Kinda wonky and my heel hits the whole assembly. Would like to convert to a Guide Nut, preferable short, and add a Lock Washer to the drive side.

Will the Guide Nut affect shifting performance vs. the Gear Selector Guide? Manual for the hubs show both setups, so I'm wondering if anyone has any real life experience comparing the two. Will it make a difference, short vs. long guidenut? Would prefer short, based on my heel-strike issue. And, which Lock Washer would I need to make up the difference with the Fulcrum Arm with Locating Washer delete?

Thanks.
Axle diameter on the XRF5 is 13/32.
Replacing the fulcrum lever with a guide nut is no problem. The regular length guide nut requires a yellow indicator if memory serves, (which should be what's in there now with the fulcrum lever),and a short guide nut works with navy blue.This is a different indicator than the blue that was standard with the non wide range 5 speed.
Just use whatever washers needed to have the axle end visible in the adjustment window in the guide nut.
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Old 08-07-17, 02:14 PM
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Originally Posted by Dan Burkhart View Post
Axle diameter on the XRF5 is 13/32.
Replacing the fulcrum lever with a guide nut is no problem. The regular length guide nut requires a yellow indicator if memory serves, (which should be what's in there now with the fulcrum lever),and a short guide nut works with navy blue.This is a different indicator than the blue that was standard with the non wide range 5 speed.
Just use whatever washers needed to have the axle end visible in the adjustment window in the guide nut.
Thanks Dan -- this was the same answer I got from S/A.

Riddle me this: if both indicator chains are indexed off the end of the axle, why does it matter what guide nut is used, short or regular? Chain length?

Parts ordered from UBI -- they are out of stock on the short guide nut, so I ordered the long nut and will be using the yellow mark unit.

I was also warned about adjusting it to 4th gear, that it should be adjusted to 2nd gear per instruction. But when I adjusted it to 2nd gear, it would top out a couple shifts in and I could not access the tall gears the other way on release. When adjusted to 4th gear, I could access all gears, as intended. Huh. I'll have to play around with it more once I get the guide nut setup.
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Old 08-07-17, 02:22 PM
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Originally Posted by mconlonx View Post
Thanks Dan -- this was the same answer I got from S/A.

Riddle me this: if both indicator chains are indexed off the end of the axle, why does it matter what guide nut is used, short or regular? Chain length?

Parts ordered from UBI -- they are out of stock on the short guide nut, so I ordered the long nut and will be using the yellow mark unit.

I was also warned about adjusting it to 4th gear, that it should be adjusted to 2nd gear per instruction. But when I adjusted it to 2nd gear, it would top out a couple shifts in and I could not access the tall gears the other way on release. When adjusted to 4th gear, I could access all gears, as intended. Huh. I'll have to play around with it more once I get the guide nut setup.
The different color indicators have different shaft lengths. If you tried using your yellow one with the short guide nut, the end of the spindle would try to go past the end of the guide nut when shifting to low gear and the chain would no longer be pulling it out.
I have found the wide range hubs to be MUCH more finicky to adjust that it's predecessor. Adjusting the colored line to split at the axle end in 2nd gear does not always result in precise gear engagement. Sometimes, you have to play around with it a bit to get it to work.
They tend to improve once worn in a bit.
I kind of lament the discontinuation of the older ball locking type. I think it was a better design, and the two we have in the home fleet have stood the test of time.
Oh, and United seems to out of stock on most things Sturmey Archer, and I wouldn't be surprised if they do not re stock. I think it's been about three years or more since they got their last order.

Last edited by Dan Burkhart; 08-07-17 at 02:26 PM.
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