Are Sturmey-Archer hubs reliable?
Are Sturmey-Archer hubs reliable?
The classic Sturmey-Archer AW hub is the most reliable gear-shifting mechanism ever made, and rarely needs anything more than a bit of medium-weight oil every so often. 95 percent of shifting problems on 3-speeds are related to the control cable or the shifter.
Is Sturmey-Archer still in business?
Sturmey-Archer’s most widely known product is the AW wide-ratio three-speed hub gear, introduced in 1938 (though patented in 1936) and still in production in a substantially modified form as of 2018.
How does a Sturmey-Archer 3 speed hub work?
Three speed hubs use a planetary gear system to achieve a gear ratio between the sprocket and the wheel. In this gear system the sun gear is fixed in place while the planet carier is rotated. This causes the planet gears to rotate which in turn causes the ring gear to rotate. The rider selects a speed using a shifter.
Who invented Sturmey-Archer gears?
John James Henry Sturmey
John James Henry Sturmey (1857–1930), known as Henry Sturmey, is best remembered as the inventor with James Archer of the Sturmey-Archer three-speed hub for bicycles, but he was a technical editor and journalist heavily involved as a pioneer of the cycling and automotive industries.
How do I fix my Sturmey Archer 3 speed?
Simple and quick
- Step 1: Select high gear. Select high gear.
- Step 2: Take up all the slack in the indicator chain. Back off the locknut.
- Step 3: Loosen the chain slightly. Back off the adjuster so the chain is slightly loose, so you can move it from side to side a wee bit without feeling any tension.
- Step 4: Check.
How does a Sturmey Archer 3 speed work?
In third gear on a Sturmey Archer AW three speed bicycle hub the chain drives the sprocket which drives the Driver which drives the Clutch which drives the Planet Cage which spins the Planet Gears which drives the Ring Gear which drives the Ring Gear pawls which drive the Ball Ring ratchet ring gear which drives the …
How do you adjust a Sturmey Archer 3-speed hub?
How do I fix my Sturmey-Archer 3-speed?
How old are Sturmey-Archer?
Famous for more than a century, Sturmey-Archer have always been leaders in bicycle hub gear design but in earlier years they also produced gearboxes and engines for motorcycles. The first 100 years of the company, are recorded on www.sturmey-archerheritage.com.
Is a 3-speed bike enough?
For most people, a 3-speed bicycle will offer enough — particularly if you’re looking for versatility. A 3-speed will handle your everyday city streets, and they can make inclines and descents easier. If you’re looking for extra speed or off-roading capability, higher-speed options are a better fit.
Why are 3 speed bikes more expensive?
Your initial purchase of a 3-speed bike may be more, just because internal gearing systems are more complicated and more expensive. These highly engineered designs come with many small parts, which means standard repairs may set you back more than you’d pay with a 7-speed bike.
Are 3-speed bikes good for exercise?
3-speed bicycles offer great versatility, but they aren’t equipped for off-roading or mountain bike trails. They’re best used on city streets and roads for everyday riding. You can reduce your pedaling effort and physical exertion by using all three gears at different points of your ride.
Is the Sturmey Archer 3-speed IGH any good?
Although the Sturmey Archer IGH with lots of gears seem to have mixed reviews, for the most part the 3-speed SA IGH has been quite bulletproof through the years.
Can a Sturmey Archer hub be used with a vertical dropout?
Any Sturmey-Archer internal-gear hub with pull-chain shifting can be installed in vertical dropouts if an eccentric bottom bracket is used. The newest (wide-range) 8-speed hub may also be used with vertical dropouts, as the shifter pulley inside the right-hand dropout can be reoriented before installing the hub.
What is the outside diameter of a Sturmey-Archer axle?
Axles of almost all Sturmey-Archer internal-gear hubs except some with rotary shifting have a 13/32″ (10.3mm) outside diameter, and so the same washers will fit any of these hubs — but different installations require different washers.
How to test for bearing adjustment with Sturmey-Archer hubs?
A very sensitive test of bearing adjustment with many Sturmey-Archer hubs is to try to tilt the sprocket, rocking it relative to the hub shell. When there is very slight play at the sprocket, there will be no discernible play at the rim, yet the sprocket will still turn freely.
