Uncle John Ultegra SL

Lightweight alloy frameset, carbon forks, Ultegra / 105 kit and drop bars make this a cross all rounder.

Sample image. Exact spec subject to change

Uncle John Ultegra SL Uncle John Ultegra SL

Uncle John goes from strength to strength in the latest incarnation of our classic cross bike build. Same great triple butted alloy frame, same super responsive carbon forks and specced with a well chosen selection of Shimano Ultegra and 105 componentry.

With responsive yet steady handling, the Uncle John excels in many different roles from cyclocross racing to commuting, touring and winter training. Hand assembled here in Yorkshire so you can customise the components to match your needs.

A very highly rated and truly versatile bike at a great price.

Race light, anvil tough, this is our do it all legend.

  • Triple butted lightweight alloy frame
  • Frame weight 1820g
  • Rackmounts and mudguard eyelets
  • Canti bosses
  • Proper cross cable routing to keep the muck out

Frame Details

Approx. Frame Weight (g) 1820
Seatpost Size (mm) 27.2
Seat Clamp Size (mm) 31.8
Font Mech Clamp Size (mm) 31.8
Wheels 700C. with clearance for 38mm cross tyres
Mudguard mounts TBC
Rack Mounts TBC
Bottle Cage Bosses 2 sets on all sizes
bike frame geometry
   S M L XL
A Head Angle (°) 71 72 72 72
B Head Tube Length (mm) 110 140 170 190
C Effective Top Tube Horizontal (mm) 522 542 568 588
D Seat Angle (°) 74 74 73 72
E

Seat Tube Length Centre to Top (mm)

510 540 570 590

F

Chainstay length (mm) 435 435 435 435
H Standover Height (mm) 78 81 84 88
I Stack (mm) TBC TBC TBC TBC
J Reach (mm) TBC TBC TBC TBC

Sizing Guide

Rider Height Suggested Frame Size
5′3″ to 5′7″ Small
5′8″ to 5′11″ Medium
5′10″ to 6′2″ Large
6′1″ to 6′6″ X-Large

Sizing Notes

All frame size recommendations are approximate. A good fit will also depend on the correct choice of stem length, correct bike set-up for the rider and riding style.

Correct frame size choice can vary greatly with riders' torso length. If you have longer legs and a shorter torso, go for a slightly shorter stem. If you think you are borderline between sizes, and you have longer legs and a shorter torso, go for the smaller frame size. If you have shorter legs and a longer torso, go for the larger frame size to get the extra top tube length.

As the frame sizes increase, so does the length of the head tube. If you are inflexible or perhaps have a history of back problems, consider going for a larger frame size. This will increase the relative height of the handlebars making the position less “extreme”. The larger frame will also have a longer top tube, so you’ll need to compensate for this with a shorter stem.

Technical Spec

Uncle John Ultegra SL

Component Description  
Bar Tape Cork Bar Tape Colour: Black more info
Bars 3TTT Forgie OX handlebar Clamp: 25.8 mm ClampSize: 40 cm more info
Brakes Planet X Frogs Bollox Cantilever Brakeset Useage: PairColour: Red more info
Build Options Build Bike - Yes (Free) more info
Cassette Shimano 105 5700 Cassette 10 Speed Cogs: 10 SpeedCassette: 12-25 more info
Chain Shimano 105 10spd Speed Chain more info
Chainset FSA Gossamer Cyclo Cross Chainset Megaexo Length: 172 mmChain Ring Size: 46/36Colour: BlackBB Incl: Includes BSA Thread Bottom Bracket more info
Fork Planet X Uncle John Carbon Cyclocross Fork Size: 1"1/18Colour: Red more info
Frame Planet X Uncle John Frame Wheel Size: 700CStyle: CyclocrossSize: MediumColour: Red more info
Front Mech Shimano Ultegra SL Front Mech Fixing: Braze OnType: Double more info
Front Mech Clamp Front Mech Band on Clamp Size: 31.8 mmColour: Silver more info
Headset On-One Smoothie Light Headset Size: 1"1/8Colour: BlackStyle: External more info
Headset Spacers Superlight Headset Spacer Pack Size: 1"1/8Colour: Black more info
Inner Tubes (2) Nutrak Inner tube Width: 18-23mmSize: 700cValve: Presta more info
Rear Mech Shimano Ultegra 6700 Rear Mech Cogs: 10 SpeedUseage: RoadType: Short Cage more info
Saddle Planet X Superlight Team Saddle Colour: BlackRails: CromMo Rails more info
Seat Clamp Planet X Squeezer 31.8mm Black Seatclamp Size: 31.8 mmType: Bolt Up more info
Seatpost 3TTT 2*2 Carbon Seatpost Size: 27.2 mm more info
Shifters Shimano Ultegra SL 10sp STI Levers-Grey more info
Stem 3TTT 4GX Stem Length: 110 mmClamp: 25.8 mm Clamp more info
Wheels Planet X A57 wheelset Spokes: 32/32hSize: 700CTyre Type: ClincherType: Shimano more info

Buying options

Uncle John Ultegra SL

Options Stock   Price    
  Uncle John Ultegra SL Size : Large Colour : Red 25 available £999.00
  Uncle John Ultegra SL Size : Medium Colour : Red 13 available £999.00
  Uncle John Ultegra SL Colour : Red Size : Small 3 available £999.00
  Uncle John Ultegra SL Colour : Red Size : X Large 18 available £999.00
Sizing guide

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