2005 Guru Crono’Alu 51cm aluminum Shimano 105 9 speed Profile Design Ritchey Pro clincher time trial
Frame and Wheel is auctioning Guru Crono Alu time trial bicycle on the Frame and Wheel eBay Store. The bicycle was purchased new in 2005. The bicycle was used for two years in sprint triathlons and for training. It has about 700 miles of use. It has had only one owner. It has never been crashed. It has been stored indoors since 2007. The owner is selling the bicycle because he no longer uses it. The frame set features Dedadacciai aluminum tubing, Dedacciai Blackstream 70 carbon fork, FSA SL 280 seat post, English thread bottom bracket, integrated head set (1 1/8 inch), bladed seat stays, integrated seat post binder, bladed seat tube, aero down tube, distinctive blue finish and Guru provenance. The bicycle features Shimano 105 front and rear derailleurs, FSA Gossamer crank set (with 53T/39T chain rings and 170 mm crank arms), Shimano 105 brake set, Profile Design Air Wing base bars Profile Design Carbon Stryke extensions, Profile Design seat and Ritchey Pro 27/28 alloy clincher wheels with Vittoria Rubino Slick tires. The bicycle as shown weighs 20 pounds 10 ounces (9.3 kg). The owner is 5 feet 6 inches with an inseam of about 30 inches. The serial number on the bottom of the bottom bracket shell reads 412039. The serial number on the front fork steer tube reads 937074. Stand over is 74.0 cm. Pedals not included. There are 190 detailed images of the bicycle at Frame and Wheel’s Flickr page. Please take a look.
Review of condition
The bicycle is in good condition. It is clean and ready to ride. The shifting is precise and complete in all eighteen gears. The brakes activate easily and grip well. There is 5 mm of brake pad. The hubs spin smoothly and freely. The spokes are tight and straight. The rims are round. The wheels show no lateral or vertical variation when placed in the truing stand. There are no dents in the alloy rims. There are no cracks in the hub bodies. There are no cracks in the flanges of the hubs. There is no corrosion on the spokes or on the skewers. The skewers are straight and complete. The tires hold pressure. The sidewalls are not cracked. The treads are not worn.
There are no dents, bends or bulges that raise concerns about the structural integrity of the frame. There is no road wear on the bottom of the down tube or on the back of the seat tube. The rear triangle is in alignment with the centerline of the frame to within 3.0 mm (the width of two pennies). The rear drop outs are properly aligned. The rear derailleur hanger is straight and undamaged. The front derailleur hanger is undamaged and secured firmly. There is no cracking, bulging or flexing that raise concerns about the structural integrity of the front fork. The steer tube does not show dents, bends or bulges. The crown race is secured firmly. There is no play in the bottom bracket. There is no corrosion in the seat post binder bolts. The seat post binder is complete and undamaged. The water bottle cage bolts are not stripped. The base bar is not bent. The extensions are not cracked. The arm rest pads adhere securely to the arm rests. The velcro on the arm rests is not peeling off. There are no rips or abrasions on the seat. The chain does not read 0.75 or 1.0 on the chain wear tool. The head badge is securely attached to the head tube.
Frame and Wheel notes the following. There is a 30 mm scratch on the drive side down tube near the head tube. There are two 2 mm x 5 mm scratches on the top of the top tube near the intersection with the seat tube. There are four 2 mm x 2 mm scratches on the inside surface of the chain stay from the chain. There are four scratches on the surface of the drive side fork blade. The cable housing for the left shifter shows cracking. There are scratches on the left brake lever. The black finish of the outer chain ring shows wear. There are scratches on the base of the non drive crank arm. The seat post shows wear from installation and removal. There is a 2 mm x 5 mm scratch on the surface of front rim wall. The rubber cones on the front hub show wear. The lettering on the tires is fading. There is old adhesive on the carbon extensions. The bar tape on the right extension is peeling.
Frame and Wheel conclusion
Frame and Wheel’s view is that this Guru Crono Alu will make an excellent choice for emerging triathlete who seeks a practical but competitive entry level time trial bike. The bicycle is in good condition and shows immaterial signs of wear. The new owner of this Guru Crono Alu will appreciate the smoothness of the Shimano 105 drive train, the reliability of the Ritchey Pro wheel set and the sturdy craftsmanship of the frame set. A rare opportunity to obtain a modern day classic from Guru.
Specifications:
Brand: Guru
Model: Crono Alu
Model year: 2005
Size: 51
Color: Blue
Frame material: Aluminum
Frame design: triathlon / time trial
Frame serial number: 412039
Fork design: aero blade
Fork material: carbon
Fork model: Dedacciai Black Stream 70
Fork serial number:
Wheel size: 700c
Frame and Wheel rating: Good condition
Following measurements are by Frame and Wheel
Total weight with wheels: 20 pounds 10 ounces (9.3 kg)
Total weight without wheels: 14 pounds 4 ounces (6.4 kg)
Front wheel weight with skewer, tire and tube: 2 pounds 11 ounces (1.2 kg)
Rear wheel weight with skewer, tire, tube and cassette: 3 pounds 14 ounces (1.8 kg)
Center of BB to top of seat tube: 54.0 cm
Effective top tube: 51.0 cm (c-c)
Seat post length from bottom to center rails: 35.0 cm
Seat post length from bottom to top of seat: 40.0 cm
Stand over height from middle of top tube: 74.0 cm
Bottom bracket height: 27.5 cm
Head tube length: 10.3 cm
Wheelbase: 97.0 cm
Front fork
Model: Dedacciai Blackstream 70
Model year: 2005
Weight: 552 g (weighed by Frame and Wheel)
Length: 37.5 cm
Serial number: 937074
Steer tube material: aluminum
Steer tube diameter: 1 1/8 inch to 1 1/8 inch
Steer tube length: 18.0 cm (base of crown race to top)
Crown race diameter: 30.0 mm
Crown material: alloy
Drop outs: aluminum
Safety tabs: yes
Brake type: side pull cantilever
Base bar
Brand: Profile Design
Model: Air Wing OS
Material: alloy
Width: 40.0 cm
Bar clamp diameter: 31.6 mm
Drop: 30.0 mm
Reach: 150 mm
Finish: black
Brake levers: Profile Design aero
Extensions
Brand: Profile Design
Model: Carbon Stryke
Extension material: carbon
Finish: black
Type: J-bend
Length: 250 mm (end to center pads measured by Frame and Wheel)
Diameter: 22.5 mm
Arm rest: Plastic 95 mm x 100 mm with pads
Headset
Brand: FSA
Steer tube diameter: 1 1/8 inch (28.6.0 mm) to 1 1/8 inch
Type: Integrated
Cane Creek Standardized Headset Identification System (SHIS): IS41/28.6 IS41/30.0
Headset: sealed cartridge bearings FSA alloy top cap, Cane Creek bearing cover
Spacers: 1 x 15 mm 1 x 10 mm 1 x 5 mm 1 x 1mm alloy
Stem
Brand: Deda
Model: Quattro
Weight: 170 g (Measured by Frame and Wheel)
Material: aluminum alloy
Length: 9.0 cm
Rise: + / - 10 degrees
Steer tube diameter: 1 1/8 inch
Bar clamp diameter: 31.8 mm
Collar stack height: 42.0 mm
Face plate: alloy four bolts
Seat post
Brand: FSA SL 280 Alloy
Model year: 2004
Seat clamp type: single bolt
Seat clamp material: alloy
Head material: alloy
Seat clamp bed dimensions: 40 mm x 37 mm
Weight: 325 g
Offset: 25.0 mm
Seat post diameter: 27.2 mm
Seat post length: 7.5 cm (bottom of seat post to minimum insert)
Seat post length: 27.5 cm mm (minimum insert to center rails)
Seat post length: 35.0 cm mm (bottom to center rails)
Seat post length: 40.0 cm (bottom of seat post to top of seat)
Finish: black
Seat
Brand: Profile Design
Model: time trial
Weight: 301 g (weighed by Frame and Wheel)
Covering: Synthetic
Length: 264 mm
Width: 120 mm
Rails: titanium
Adjustable rail length: 35 mm
Rail width: 45 mm c-c
Rail diameter: 7 mm
Finish: black
Crank set
Brand: FSA Gossamer
Model: CK-6020
Year: 2004
Chain rings: 53T / 39T double
Bolt circle diameter: 130 mm
Crank arm length: 170 mm
Spider material: alloy
Finish: black
Rear derailleur
Brand: Shimano
Group: 105
Model: RD-5501
Year: 2004
Cage type: Short
Drive train: 9-speed
Finish: chrome
Front derailleur
Brand: Shimano
Group: 105
Model: FD-5500
Year: 2004
Type: Braze-on
Crank set: double
Finish: Chrome
Brakes
Brand: Shimano
Group: 105
Model: BR-5501
Year: 2004
Pads: for alloy rims
Type: side pull caliper brake
Quick release: yes
Finish: chrome
Cassette
Brand: Shimano
Model: CS-HG70-9
Year: 2004
Gearing: 12, 13, 14, 15, 16, 17, 19, 21, 23
Bar end shifters
Brand: Shimano
Group: Dura-Ace 7700
Model: SL-BS7700
Year: 2004
Speed (R): 9 speed
Speed (L): Double
Bottom bracket
Brand: FSA
Model: MegaExo
Threading: English
Others
Seat collar diameter: na
Drop outs: alloy vertical (R) alloy standard (F)
Rear derailleur hanger: replaceable
Front derailleur hanger: welded for braze-on
Cabling: external top tube down tube chain stay
Chain: Shimano
Pedals: not included
Bottle cages: one
Bar tape: Black
Front
Brand: Ritchey
Model: 27 DS Pro
Model year: 2004 estimated
Rim material: aluminum 6061 T6
Rim shell material: aluminum
Series: road / triathlon
Type: clincher
ETRTO: 622 x 14c
Rim serial number: T-0304992
Hub serial number: na
Size: 700c
Front wheel weight with skewer, tire and tube: 2 pounds 11 ounces (1.2 kg)
Spoke count: 20
Spokes: aluminum standard external nipples
Lacing: radial
Hub: Ritchey
Hub material: aluminum
Skewer: Ritchey
Rim depth: 27.0 mm (measured by Frame and Wheel)
Rim width: 19.0 mm (measured by Frame and Wheel)
Tire: Vittoria Rubino Slick 700 x 23C
Base tape: Ritchey
Over Lock Nut Dimension: 100 mm
Finish: Silver lettering on black
Rear
Brand: Ritchey
Model: 28 DS Pro
Model year: 2004 estimated
Rim material: aluminum 6061 T6
Rim shell material: aluminum
Type: clincher
ETRTO: 622 x 14C
Series: road / triathlon
Rim serial number: T-0305190
Hub serial number: na
Size: 700c
Rear wheel weight with skewer, tire, tube and cassette: 3 pounds 14 ounces (1.8 kg)
Spoke count: 24
Spokes: aluminum straight external nipples
Lacing: 2-cross non drive-side 2-cross drive side
Hub: Ritchey Zero System
Hub material: aluminum
Skewer: Ritchey
Rim depth: 28.0 mm (measured by Frame and Wheel)
Rim width: 19.0 mm (measured by Frame and Wheel)
Tire: Vittoria Rubino Slick 700 x 23C
Base tape: plastic Ritchey
Over Lock Nut Dimension: 130 mm
Free hub body: Shimano / SRAM
Finish: Silver lettering on black
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