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Three speed aw hub gear

Two Cities Two Wheels: Three Speed Dreams

Sturmey Archer 3 speed AW gearhub. How it works. - YouTube 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 Hub Shell which makes the wheel go 'round, while in the background the Planet Cage pawls are overtaken by the underdrive Hub Shell ratchet ring gear but no worries, that's.

This leaflet refers to the following 3-speed gear hubs: Gear Hubs with Drum Brake:AB3, SAB3, X-RD3, XL-RD3 Gear Hubs:AW, S-RF3 Gear Hubs with Coaster Brake:AWC(II), S-RC3(II) Gear Hubs for Band Brake:AWB, S-RB3 1.2 Lubrication No routine lubrication is required. During a major service, the hub greases should be replenished or replaced especially for transmission parts of internal hub. Please contact your Sturmey-Archer dealer who is equipped to carry thi STURMEY ARCHER AW 3 SPEED GEAR HUB 40 HOLES c/w GEAR SHIFTER & CABLE. - EUR 29,74. ZU VERKAUFEN! VINTAGE STURMY ARCHER AW 3 SPEED GEAR HUB DATED 56 - 10. 20359545597

STURMEY-ARCHER A W 3-SPEED HUB . o DISASSEMBLY . AND ASSEMBLY (cont.) DISASSEMBLY . I . HUBS<C+. Remove right-hand locknut, lockwasher and cone. Remove clutch spring, cap and driver.' Remove ball ring and gear ring. Next. Step . G)DISASSEMBLY . I . Lift off gear ring. Remove thrust ring.2 Push out axle key. Remove clutch sleeve. Remove planet cage. gear rin he common Sturmey-Archer three-speed hubs provide a direct drive middle gear, a high gear that is 4/3 of the middle gear, and a low gear that is 3/4 of the middle gear. (The principle of operation is explained on another page on this site.) Among current hubs as of 2010, the S3X fixed-gear hub is different, with two step-down gears and a direct-drive gear, and a special Brompton hub has a wider range to use with two sprockets and a derailer for a total of 6 speeds

Sturmey Archer 3 speed AW gearhub

This hub is I disassemble, clean, degrease, replace bearings, lubricate and re-assemble a 3 speed Sturmey Archer AW type bike hub. A basic teardown/rebuild

STURMEY ARCHER 3 Speed Bicycle AW Gear Hub 36h 1984 - EUR 21,09. ZU VERKAUFEN! Sturmey Archer 3 Speed Bicycle AW Gear Hub 36h 1984. Used but 33405723315 Sturmey-Archer AW 3 Speed Stripdown. The 3-speed AW hub deserves a position in the museum of National Treasures. An elevated position on a velvet cushion with lights shining on it. It truly is an iconic machine. The Sturmey-Archer factory made literally millions and millions of these hubs to essentially the same design and shipped them all over the world. For nearly a century, bicycles have. The AM uses three compound planets with differently sized cogs machined from a common shaft to engage the gear ring and sun gear separately, while the close-ratio three-speeds, and hubs with four or more speeds, use multiple planetary geartrains. Depending on the specific hub these may be in series with each other, or with one or the other set being selectable at any given time by locking a particular sun gear to the axle STURMEY ARCHER AW 3 Speed 28h Rear Hub Gear Vintage Retro Raleigh Shopper Bike - EUR 29,26. ZU VERKAUFEN! Details BrandSturmey ArcherModelAWSpeeds3 SpeedO.L.D112mmD.O.B(78 9) September 1978Cog15tSpoke Holes28hCountry of OriginUKConditionGood 27489423005

How It Works: Three Speed Bicycle Gears Hidden Inside The Hu

Explains the inner working of a classic (sturmey-archer type) bicycle 3-speed gear hub STURMEY ARCHER AW THREE SPEED HUB GEAR 1949 unusual patents - $30.76. FOR SALE! AW 10/1949 three speed hub gear chrome plated Steel shell 40hole with 19390510628

The AW hub has three gears: 4. Technical Information- AW Three Speed Hub of the axle. This can be seen through the round window in the right hand axle nut Tighten the locknut (2) against the adjuster. Check that all 3 gears are selected correctly. If correct adjustment cannot be achieved, the fulcrum clip must be moved in the appropriate direction along the frame tube. Re- tighten the clip and. The AW hub has three gears: 1st gear - Decrease of 25% 2nd gear - Direct drive 3rd gear - Increase of 33 1/3% 1.5 Sprockets The overall drive ratio can be altered by changing the size of the sprocket. A range of sprockets from 13 to 22 teeth is available, suitable for 1/2 X 1/8 Chain. Part 2 ROUTINE MAINTENANCE When service problems arise they usually occur outside the hub, and the following. How It Works: 3 Speed Sturmey Archer AW Bicycle Gears - Northport, NY - I always wondered how my childhood Schwinn Stingray gears worked, because everything was hidden inside the hub. Now I know This leaflet refers to the following 3-speed gear hubs: Gear Hubs with Drum Brake:AB3, SAB3, X-RD3, XL-RD3 Gear Hubs:AW, S-RF3 Gear Hubs with Coaster Brake :AWC(II), S-RC3(II) Gear Hubs for Band Brake:AWB, S-RB3 1.2 Lubrication No routine lubrication is required. During a major service, the hub greases should be replenished or replaced especially for transmission parts of internal hub. That fact alone is a testament to the quality of the design of the AW three-speed hub. The low gear pawls have been highlighted in red, these engage with the hub shell in 1st gear, and are disengaged in second and third gear, leading to the characteristic Sturmey Archer tick when in higher gears. The high gear pawls are highlighted in green. To disassemble an AW, you first need to.

STURMEY ARCHER AW 3 SPEED GEAR HUB 40 HOLES c/w GEAR

Servicing Sturmey-Archer 3-Speed Hub

How It Works: 3 Speed Sturmey Archer AW Bicycle Gears

STURMEY ARCHER AW 3 SPEED GEAR HUB 40 HOLES c/w GEAR SHIFTER & CABLE. - EUR 29,19. TE KOOP! VINTAGE STURMY ARCHER AW 3 SPEED GEAR HUB DATED 56 - 10. 20359545597 Dutch 'flick of the finger' advertisement. Sachs 3-speed shifters. 4 versions of Trigger logo. Type AW/A 3-speed alloy hub. Type AW ( No Inbetween Gear) for Columbia U.S.A.. Type AT5 alloy 5-speed 70mm drum brake hub. Type GBF front 90mm drum brake hub with sealed bearings. Sturmey-Archer is seperated out of Raleigh Industries

How to adjust the Sturmey Archer AW three speed hub

SamW. I oiled my long neglected Sturmey Archer 3-speed hub because the bike was jumping out of gear and wouldn't stay in first gear at all. I read online that I shouldn't use WD-40 and that 3-in-1 oil was also not recommended, even though many people use it, but rather thin engine oil was best. So I used some SAE 15W-40 engine oil (which looked. A hub gear works so well on a pedal cycle because (almost uniquely) a pedal cycle's primary drive gears up for speed, not down for torque. This is why hub gears can be so small and light compared to gears mounted at the bottom bracket. When hub gears were used with petrol engines, the primary drive was considerably geared down and the hub gears proved unsuitable. They just weren't tough.

Type AW 3-speed wide ratio hub : Type AR 3-speed very close ratio hub : Type TC 2-speed fixed/freewheel : Type GH12 12 volt 0.23 amp,2.7 watt front Dynohub : Hub range leaflet. Hub range including 2-speed. KS, KSW hubs : 1937: Type AM 3-speed medium ratio hub : Type AR hub sales leaflet. Danish lubricating leaflet : 12v 3w dynohub maintenance. STURMEY ARCHER AW THREE SPEED HUB GEAR 1949 unusual patents - $32.98. FOR SALE! AW 10/1949 three speed hub gear chrome plated Steel shell 40hole with 19390510628 STURMEY ARCHER AW 3 SPEED GEAR HUB 40 HOLES c/w GEAR SHIFTER & CABLE LOT 2 - $56.11. FOR SALE! VINTAGE STURMY ARCHER AW 3 SPEED GEAR HUB DATED 56 - 10. 20357542863 Amounts shown in italicised text are for items listed in currency other than Euros and are approximate conversions to Euros based upon Bloomberg's conversion rates. For more rece

Servicing The Sturmey-Archer AW Wide-Ratio Three Speed

sturmey archer aw 3 speed gear hub 36 holes c/w gear shifter & cable - eur 34,99. for sale! vintage sturmy archer aw 3 speed gear hub dated 90 - 02. 20345196061 32H 135Mm Hub 24H 24H Rear Hub Set 32H Hubset 32H Dt Swiss 240S Front 36 Loch Hubset Front Nabe Hub Hub 135 Chris King Rear Hub Ultegra Rear Hub Campagnolo Freehub Body Disc Hub 32H 36H 120Mm Njs Approved Hub Front Hub Silver Front Hub 6 Rear Hub Shimano Sram Hub 32 Spoke Rear Hub 8 9 10 Holes Shimano Hub 8 9 10 Speed Hub Set 32 Rear Hub 28H 32H 8 Hub Vgc 120Mm Rear Hub 28H Shimano Dura Ace Hb.

Vintage Sturmey Archer 3 Gang AW Hub Gear 36 Loch 1992 eBa

  1. Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversio
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  3. Dyno Hub Record Rear Hub Disc Rear Hub 100Mm 9Mm Hub 3 8 100Mm Spacing Hope Pro 2 Evo Hub Silver 7 Speed Cassette Spoke Holes 24 Spoke Suntour Superbe Pro 36H 9Mm Quick Release 3 8 Axle Cycling Hub Record High Flange Speed Coaster White Hub Shimano Xtr Hb-M950 Hub 36 Loch Mtb Hub 8 9 10 Speed Xd Driver Skewer 36H Chris King R45 36H 110Mm Njs Approved 36H 110Mm Njs Approved Hub

Sturmey Archer AW 3 Speed Hub - Bearing Service / Overhaul

  1. These pawls are what produces the characteristic 'tick-tick-tick' of Sturmey Archer three speeds in their second and third gears. The planets of the BWR have 12 teeth and revolve around a 34-tooth sun pinion, which produces wider-spaced gearing than the AW which has 20-tooth planet and 20 tooth sun pinion. These smaller planets require smaller pins than the standard range three-speed hub.
  2. Esoteric info for Sturmey freaks. Posted on 02/07/2012. 06/08/2021. by Tony Hadland. The first seven of the following files provide amazingly detailed information on Sturmey-Archer hubs, from the earliest models to the present day. They were compiled by English engineer and hub gear enthusiast, the late Jim Gill
  3. g; Running; Musical Instruments; Dietary Supplements and Nutrition; 32H 135Mm Hub 24H 24H Rear Hub Set 32H Hubset 32H Dt Swiss 240S Front 36 Loch Hubset Front Nabe Hub Hub 135 Chris King Rear Hub Ultegra Rear Hub Campagnolo Freehub Body Disc Hub 32H 36H 120Mm Njs Approved Hub Front Hub Silver Front.
  4. Raleigh Bsa Rudge Hercules Njs Keirin Shimano Dura Ace Rudge Etc Raleigh Bsa Rudge Humber Hercules Etc Vintage Raleigh Industries Sturmey Archer Gear Raleigh.

Sturmey-Archer Product

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  2. CABLE GEAR 3 Speed Sturmey Archer TYPE UNIV 60x65in. 4.4 out of 5 stars 72. $15.08 $ 15. 08. Sturmey-Archer Sturmey Archer Mark IV Indicator Chain 3 speed. 5.0 out of 5 stars 1. $9.99 $ 9. 99. Lowrider Three Speed Cable Kits Shifter Sturmey/Archer 3/Speed Hub Black. 5.0 out of 5 stars 4. $19.60 $ 19. 60. Next page. Customers who bought this item also bought. Page 1 of 1 Start over Page 1 of 1.
  3. This note is about Styria 3-Gang 3-speed hub made in Austria (mostly in the 1960's). It's without a coaster brake. It was used on Steyr bicycles, also made in Austria. It's claimed that these hubs are clones of the Sturmey Archer AW hub and were made between 1954 and 1972. 2. Disassembly. Remove the wheel and take off all axle nuts (including the two bearing cones which go on the axle.
  4. STURMEY ARCHER THREE SPEED HUB 36H 1972 AW 3 SPEED HUB STICK SHIFTER MUSCLE BIKE. $83.99. $10.00 shipping. or Best Offer. Only 1 left! SPONSORED . VINTAGE STURMEY ARCHER 5 SPEED BELLCRANK FIVE SPEED HUB BELL CRANK MUSCLE BIKE. $124.99. $10.00 shipping. or Best Offer. 19 watching. STURMEY ARCHER 3 SPEED HUB INDICATOR CHAIN NOS. $9.99. 108 sold. SPONSORED. VINTAGE STURMEY ARCHER SC COASTER HUB.
  5. Supports any number of chainrings and cogs, as well as many popular internally-geared hubs. Results can be displayed as gear inches, metres development, or Sheldon Brown's gain ratios. Drivetrain 1: Tire: Crank: (only used for gain ratios) IGBB: Rings: Cogs: IGH: Drivetrain 2: Tire: Crank: (only used for gain ratios) IGBB: Rings: Cogs: IGH: Options: Units: Labels: cassette cog toothcount data.
  6. The drive train consists of a Sugino GT crankset with 50/45/34 rings, paired with a NOS Suntour Ultra 13-30 6 speed freewheel. This gives a wide gear inch range of 30 - 104 - perfect for full speed blasting and hill climbing. I used a Shimano Deore long cage rear derailleur, the same one I have always used with the bike, as well as a vintage Shimano front derailleur. Gear changes are.

3 speed internal gear freewheel hub; Hub shell is SPCC steel; 163mm axle with 117mm O.L.D. Comes with shifter trim kit & 18 tooth cog; 36 Hole; Bolt-on 3/8 axle; 1140 grams; Rim brake; 117mm O.L.D. Sturmey-Archer HKS3FW.SSXS.CS0.BX Color: Silver. Hub Drilling: 36 Hole. Hub Brake Compatibility: Rim Brake. Cassette Body Type: 3 Prong Cog. Rear Axle: 3/8 Threaded x 117mm. Sturmey Archer AW 3. Dismantling the Sturmey-Archer 3 Speed AW Internal Gear Hub | Littlewheeler. June 27, 2013. Leave a comment Sturmey-Archer ASC Fixed-Gear Three-Speed Hub Sean purchased this on ebay for around $500 and is using in on the streets of Seattle. After about 700 miles the aluminum hub shell failed but the internals were fine. The hub and wheel were rebuilt with a 40 hole steel hub shell. The guts are the same! The rebuilt wheel with a steel TCW hub shell. Sturmey-Archer AWC England Note: This is from an.

Sturmey-Archer 3-Speed Hubs by Jobst Brand

Before the three speed internally geared hub, bikes had but one single gear. While one gear is adequate for many purposes, the addition of two more gears, one for climbing hills, and one for powering on flats or going downhill, opened up a new world of opportunities. The country most associated with three speed bicycles is the United Kingdom. And there's a very good reason for that. The UK. SHIMANO NEXUS - Internal Geared Rear Hub - Coaster Brake - O.L.D. 120/127.4 mm - 3-speed. With a reliable, internal 3-speed mechanism, the SHIMANO NEXUS SG-3C41 hub has an integral coaster brake. Internal geared hub for Coaster Brake version. Integral Coaster Brake. Gear Change Support Mechanism Sturmey archer 3 speed hub. Lalit. February 10th, 2013. It is inbuilt geared hub with 3 speeds. Show more... View Files In 1954 they substituted the AW three-speed design with the ill-fated SW model three-speed (Hadland, 1987, p.134) with springless crescent-shaped pawls. How this hub got into production is curious because it never worked and slipped in every gear. What is most surprising is that it took them three years to withdraw it! I don't know if they replaced all the defective hubs they sold but.

Three Speed Hub - Online vintage bicycle catalogs and manuals, store for old bicycle parts, maintenance, servicing, refurbishing, restoration articles, frame builders information and open forum Hub-gear four-speeds and five-speeds are OK, too, as long as they're old. email submissions to: Photo links (flickr, etc) are preferred to photo files. Please include any information pertaining to the make, model, age, and any other interesting features of the bicycle. Blog Archive 2014 (5) November (1) 1958 Raleigh Sports restoration September (2) January (2) 2013 (6) October (1) August (3. Sturmey Archer Internal for S5C W Hub - HSX148. Only 1 in stock. £149.99 Inc VAT. Quick view. Sturmey Archer Internal for 8 Speed - 175 mm - HSX151. Out Of Stock. £124.99 Inc VAT. Quick view. Sturmey Archer Internal for 8 Speed - 185 mm - HSX150 A 3-speed with an internal hub is a good option. You don't consider yourself a pro. Because a 3-speed can shift even at a stop, and the shifting requires less cable pull, the cables will not only last longer but are less likely to give you trouble when shifting. For newbies just moving up from a 1-speed, the 3-speed is a good stepping stone 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. Cable Lever of Three Speed Hub: The rider selects a speed using a shifter. The shifter pulls on a cable which is.

Both of these hubs had primary and secondary gear trains. Both of these 4-speed hubs were aimed at the club/racing cyclist. In 1941 production was halted due to the war effort. The Sturmey Archer FW 4-speed hub. The FW started in 1946 and was more suited to the commuter cyclist. It has compound planet pinions and two sun pinions which allow the drive to be run as a single simple gear train or. Rohloff SPEEDHUB 500/14 14 Speed. Shimano Alfine 11-Speed SG-S7001-11. Shimano Nexus 8-Speed SG-C6000-8D. Sturmey-Archer 3-Speed + Freehub CS-RK3 Enviolo Sportive Hub, Continuously Variable. Best riding application. Touring/Trekking. Urban/Street. Urban. Urban. Urban/Trekking. Cost. Roughly $1,800 standard hub only. Roughly $380-450 standard. SHIMANO NEXUS - Internal Geared Rear Hub - Roller Brake - O.L.D 120.4/126.8 mm - 3-speed The SHIMANO NEXUS SG-3R40 hub offers a reliable 3-speed mechanism, a SILENT CLUTCH, and roller brake. Internal Gear Shifting; Gear shifting action is independent of pedaling. You can shift gears anytime, while standing still, pedaling or coastin The S3X is an aluminum fixed-gear hub (in 120mm and 130mm sizes) with three speeds. The difference between this and any other three-speed hub is that there is no freewheel, meaning that, like any.

that guy. Participant. 06/05/2012 at 9:02pm #. Sturmey Archer SX3 is a 120mm 3-speed fixed hub, though you could just spin a freewheel on there. The AW is a 3-speed with a 127mm O.L.D. which would work if your frame is steel. You could also get the Nexus and just take the coaster brake arm off. Anonymous STURMEY ARCHER THREE SPEED HUB 36H 1972 AW 3 SPEED HUB STICK SHIFTER MUSCLE BIKE. $83.99. $10.00 shipping. or Best Offer. Only 1 left! NOS Sturmey Archer Bicycle 3 speed Cable 1 Pulley Wheel . $16.50 . $4.00 shipping. Only 1 left! SPONSORED. VINTAGE BIKE BICYCLE STURMEY ARCHER FENDER REFLECTOR 2 INCH ENGLAND USED. $22.99. $10.00 shipping. or Best Offer. GENUINE STURMEY ARCHER England 3. 3.5 AW; 3.6 AW-Columbia; 3.7 AW Alloy; 3.8 S3B; 3.9 S3C; 3.10 SAB; 3.11 SAB Steelite; 3.12 SW; 3.13 TCW; 4 Siehe auch; 5 Quelle; Übersetzungen. Die üblichen Sturmey-Archer Drei-Gang-Naben haben im mittleren Gang eine direkte Übersetzung (1:1), im höchsten Gang 4/3 der direkten Übersetzung und im unteren Gang 3/4 des mittleren Gangs. Das Prinzip, die das erreicht wird, wird in einem. 3 speed internal geared hub. Includes the shifter unit. The most durable 3 speed IGH we know of. 186% gear reduction between 1st and 3rd. 2nd gear is straight through and can take thousands of watts of power. Read our story on the how awesome an IGH is on an electric bike. 970 grams. disc or rim brake compatible. 135mm dropouts

Most hub gears have a smaller range than derailleur gears: the difference between top and bottom gear is narrower. A 3-speed hub is fine on flatter or rolling terrain but can be hard work on hills. A 7-, 8- or 11-speed hub is a better bet there. The number of gears is smaller than a derailleur setup too, so there are bigger steps between those gears. You can't change those steps. However, you. I think a three speed hub with a cable and trigger detracts from the minimal aesthetic that makes the urban fixed wheel bicycle desirable. If you want gears, get a bike with gears. If you want simplicity, by all means ride a fixed wheel or single speed bicycle. As unmoved as I was by the S3X my attention was drawn to something altogether more novel and less well-advertised: the Sturmey Archer.

26x1-3/8 3 Speed Rear Wheel Width ID (mm): 19 Axle: B/O 3/8 Rim Color: Chrome Plated Rim Model: W/M Steel 1-3/8 Hub Model: S/A AW O.L.D.: 127 Hub Color: Silver Gears: 3spd Internal Brake Type: Rim Spoke Type: 14G UCP Spoke Count: 36H Wall: Single Valve: Schrader Valve Type: Tube Only Menu. Your Cart. change quantities, enter codes, or checkout. view your cart. Contact Contact Status Order. Lowrider Three Speed Cable Kits Shifter Sturmey/Archer 3/Speed Hub Black. Look forward to using this to repair the gear cable in my 3 speed Schwinn Breeze Images in this review Helpful. Report abuse. Philip Donahue. 5.0 out of 5 stars Five Stars. Reviewed in the United States on October 7, 2017 . Verified Purchase. As expected and very nice. Thank you. Read more. Helpful. Report abuse. It is inbuilt geared hub with 3 speeds. Show more... Download files Like Share. 377 Downloads 6 Likes 0 Comments. Details. Uploaded: February 10th, 2013. Software: Rendering, SOLIDWORKS, Categories: Automotive, Educational, Machine design, Tags: bicycle, hub, sturmey, 6 Likes. More by Lalit. View all. Similar models . View Files. Files (2) Sturmey archer 3 speed hub Sturmey archer 3 speed hub. Find helpful customer reviews and review ratings for Sturmey Archer S30 3-Speed Internal Hub - 36h, 18T Cog, No Brake at Amazon.com. Read honest and unbiased product reviews from our users

Video: How To Overhaul/Clean/Lube Sturmey-Archer 3 Speed Hub - AW

Sturmey Archer - The Colwood Wheel Works WorkshopThe Bike Shed: The Classic Sturmey Archer S5 Shifter andSturmey-Archer Internal Gear Hub ServiceHow to adjust the Sturmey Archer AW three speed hubServicing The Sturmey-Archer AW Wide-Ratio Three Speed

Internal parts for new SRAM or Shimano hub gears are almost unobtainable in the US. However the situation is completely different for older Sturmey Archer hubs. Virtually any part can be found for an AW, FW, S5, S5/1 or S5/2. Between Ebay, parts for new hubs that fit old ones, collectors like myself with stashed of NOS (New Old Stock) and slightly used parts, a few suppliers who still have NOS. Sturmey Archer 3-speed Dished Cog - 3-spline - 1/8 - 24t Chrome. 3-spline steel cogs for use with Sturmey 3-speed (and 5sp) internal gear rear hubs Flat or dished for tuning chainline. Xylan coating for read more. Silver 24 Teeth 3 Speed. In Store Sturmey-Archer HSL876.0001.0P. your price $6.99. Buy PART NUM 401062. Sturmey-Archer Front Axle Nut Dome. Genuine Sturmey Archer replacement. As my bicycle Lucy 3-Speed is a prototypical vintage Raleigh Lady's Sports, I initially did not see any need to review her. But in the end I decided to go ahead and write the review, making it a sort of general commentary on buying a vintage 3-speed. The benefits of Raleigh 3-speeds are that they are sturdy, comfortable, durable, easy to ride, have good front and rear loading capacity, and can. three-speed fixed gear hubs required a different trigger with a different throw distance for a proper gear change. Photo courtesy of Model GC2. 1950-3 Trigger for 3 or 4 speed, with window showing the gear - B (base), L (low), N (normal), or H (high) - and original patent number 498820. Pat No. switched to PAT G.B. STURMEY ARCHER in red lettering. Model GC2. 1950-3. Variant of. Three primary speed hubs have one single sun gear. It is attached to the middle of the axle. The sun gear revolves around the identical 3 or 4 planet gears. The gear ring surrounds these planet gears. The gear rings are like teeth from the inside section. The internal gear works in a very systematic manner. The planet gears are attached to the planet cage, which revolves around the ring. These. Introduced 1948-9 for 3 or 4 speed hubs with original patent number 498820. Model GC2. 1948-9. Same as above except with different font and finish on the medallion. Model GC2. 1950-3 Trigger for 3 or 4 speed, with window showing the gear - B (base), L (low), N (normal), or H (high) - and original patent number 498820. Pat No. switched to PAT G.B. STURMEY ARCHER in red lettering.