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Assembling Evelyn Stevens' hour-record attempt bike

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Evelyn Stevens is attempting to set the women's hour record Saturday aboard this bike

Evelyn Stevens is attempting to set the women's hour record Saturday aboard this bike (Image credit: Ben Delaney/Immediate Media)
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Specialized bars have served Stevens well

Specialized bars have served Stevens well (Image credit: Ben Delaney/Immediate Media)
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Stevens has a 53t on her A bike and a 54t on her B bike. While she can't look at her Quarq power meter during the hour effort, her coach can

Stevens has a 53t on her A bike and a 54t on her B bike. While she can't look at her Quarq power meter during the hour effort, her coach can (Image credit: Ben Delaney/Immediate Media)
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The Shiv TT was modified — there is no derailleur hanger

The Shiv TT was modified — there is no derailleur hanger (Image credit: Ben Delaney/Immediate Media)
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Since the frame has road spacing, extra spacers are added to the Zipp track disc

Since the frame has road spacing, extra spacers are added to the Zipp track disc (Image credit: Ben Delaney/Immediate Media)
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Shanks was gluing up tubulars in the days ahead of Stevens' attempt

Shanks was gluing up tubulars in the days ahead of Stevens' attempt (Image credit: Ben Delaney/Immediate Media)
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Stevens' bikes have 23mm rear and 19mm front tubulars

Stevens' bikes have 23mm rear and 19mm front tubulars (Image credit: Ben Delaney/Immediate Media)
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Specailized cotton tubulars will be where the rubber meets the track

Specailized cotton tubulars will be where the rubber meets the track (Image credit: Ben Delaney/Immediate Media)
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Road tubulars may be getting wider these days, but not here

Road tubulars may be getting wider these days, but not here (Image credit: Ben Delaney/Immediate Media)
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ISM supplies the Adamo Road perch

ISM supplies the Adamo Road perch (Image credit: Ben Delaney/Immediate Media)
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Seat height is marked

Seat height is marked (Image credit: Ben Delaney/Immediate Media)
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Shanks removed the stock grease and replaced with Tri-Flow

Shanks removed the stock grease and replaced with Tri-Flow (Image credit: Ben Delaney/Immediate Media)
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Stevens is riding a custom version of the Specialized S-Works Shiv TT

Stevens is riding a custom version of the Specialized S-Works Shiv TT (Image credit: Ben Delaney/Immediate Media)
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Specialized made a few custom stems like these for pro riders to get low

Specialized made a few custom stems like these for pro riders to get low (Image credit: Ben Delaney/Immediate Media)
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Shanks made this jig to test for the UCI's regulations nealry a decade ago when he was a team mechanic with Team Garmin

Shanks made this jig to test for the UCI's regulations nealry a decade ago when he was a team mechanic with Team Garmin (Image credit: Ben Delaney/Immediate Media)
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Brian Szykowny did a special paint job on this frame

Brian Szykowny did a special paint job on this frame (Image credit: Ben Delaney/Immediate Media)
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Daimeon Shanks, owner of The Service Course, carefully tuned and rebuilt Stevens' two bikes

Daimeon Shanks, owner of The Service Course, carefully tuned and rebuilt Stevens' two bikes (Image credit: Ben Delaney/Immediate Media)
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Shanks removed the seals on the bottom bracket and wheel bearings, flushed out the stock grease and repacked with a minimal amount of special grease

Shanks removed the seals on the bottom bracket and wheel bearings, flushed out the stock grease and repacked with a minimal amount of special grease (Image credit: Ben Delaney/Immediate Media)
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Ceramic bearings are used at the wheels and the bottom bracket

Ceramic bearings are used at the wheels and the bottom bracket (Image credit: Ben Delaney/Immediate Media)
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Shanks checks the chain tension on Stevens' race bike

Shanks checks the chain tension on Stevens' race bike (Image credit: Ben Delaney/Immediate Media)
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Shanks checks the wheel alignment

Shanks checks the wheel alignment (Image credit: Ben Delaney/Immediate Media)
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Shanks dials in the hub tension

Shanks dials in the hub tension (Image credit: Ben Delaney/Immediate Media)
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After taping on a magnet, Shanks heat wraps the tape

After taping on a magnet, Shanks heat wraps the tape (Image credit: Ben Delaney/Immediate Media)
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With the heat's help, the tape adheres so tightly that the Zipp's dimples show through

With the heat's help, the tape adheres so tightly that the Zipp's dimples show through (Image credit: Ben Delaney/Immediate Media)
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Total weight including pedals: 7.28kg

Total weight including pedals: 7.28kg (Image credit: Ben Delaney/Immediate Media)
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Will the aero pedals help? Well, they can't hurt

Will the aero pedals help? Well, they can't hurt (Image credit: Ben Delaney/Immediate Media)

This article originally appeared on BikeRadar

American Evelyn Stevens (Boels Dolmans) will be attempting to set a new world hour record Saturday, and pro mechanic Daimeon Shanks pulled out all the stops — and much of the grease — in assembling the two bikes she will have at the velodrome in Colorado Springs, Colorado.

Instead of a pursuit-style track bike, the frameset is a Specialized S-Works Shiv TT that has been prepped for the track. The derailleur hangers and bottle-cage bosses were removed for aerodynamics, and spacers were added to the Zipp track disc's hub to bridge the gap to the 130mm road frame spacing. The derailleur hanger was removed for aerodynamics, and spacers were added to the Zipp track disc's hub to bridge the gap to the 130mm frame spacing. Stevens also has a team-only custom stem to get her position low, with a 12cm drop from the top of her saddle to the top of the arm rest pads.

Every bearing in the bike is ceramic, arguably the fastest stock option out there. On Wednesday, though, Shanks overhauled every bearing, flushing out the factory grease and adding in only the slightest amount of special grease. Further, he removed a bearing seal on each bearing in the pursuit of those marginal gains.

"Less grease means less resistance for the bearing, which means less friction and more speed," Shanks said. "Granted, this is very small change, because the bearings are already super fast."

Similarly, at the pedals, Shanks flushed out all the stock grease, took a seal off the cartridge bearing, and put in Tri-Flow lubricant in place of grease.

"It's fast, really light and it won't last long," Shanks said. "But it only needs to last an hour."

Stevens has been training on ceramic bearings with the stock grease and seals.

Two last-minute changes not shown in the images in the gallery above are the race chain, a UFO-coated SRAM 22 model, (which, like the Tri-Flow, won't last long but offers almost zero drag) and a Garmin Edge computer that will be mounted underneath her saddle. UCI rules stipulate that the rider cannot have any visible data on board. Her coach Neal Henderson, however, will have access, thanks to a WASP unit that will be picking up the her real-time data.

Stevens' A bike has a 53t front ring and a 14t cog. Her B bike has a 54t ring, and is otherwise identical.

Click through the gallery above for detailed imagery of her A bike and Shanks assembling it. And be sure to check out Cyclingnews this Saturday for coverage of her world hour record attempt. The current women's hour record stands at 46.882km and is held by Australian Bridie O'Donnell.