Description
- Frame: P500 Series OCLV Carbon, E2, BB90, performance cable routing, 3S chain keeper, DuoTrap compatible, Ride Tuned seatmast, IsoSpeed with a few chips on the paint (See Pictures). The Frame has been cleaned, polished, and coated with Lithium Auto Care ceramic coating.
- Fork: Domane IsoSpeed full carbon, E2 asymmetric steerer
- Wheelset: Bontrager Race Tubeless Ready
- Tires: IRC Formula Pro 25c
- Tire Clearance: Up to 25c tire. Posable 28c, depending on tire brand and wheel/rim diameter.
- Shifters: Shimano Ultegra ST-6800
- Crankset: Shimano Ultegra, 50/34 (compact) FC-6800 172.5 New bb bearings
- Front Der: Shimano Ultegra FD-6800
- Rear Der: NEW Shimano Ultegra RD-R8000 Short Cage, SS (Black)
- Casstte: Shimano Ultegra, CS-6800 11-28
- Brakes: Shimano Ultegra BR-6800
- Stem: Bontrager Race X Lite, 31.8mm, 7-degree 31.8 100mm
- Bars: Bontrager Race Lite IsoZone, VR-CF, 31.8mm 42cm
- Seat Post: Bontrager Ride Tuned Carbon seatmast cap, 20mm offset
- Saddle: Specialized Avatar 155mm
Inventory number: 030300 TreDom
Industry Description:
2015 Trek Domane 5.2 Compact: The King of Compliance
The 2015 Trek Domane 5.2 remains one of the most significant milestones in endurance road geometry. Built with Trek’s 500 Series OCLV Carbon, this bike’s claim to fame is the IsoSpeed Decoupler—a mechanical pivot that allows the seat tube to flex independently of the frame. In the shop, we call this the “Road Smoother.” It provides a vertical compliance that eats up Colorado’s chip-seal backroads without sacrificing the lateral stiffness you need for out-of-the-saddle climbing.
Equipped with a full Shimano Ultegra 6800 11-speed groupset and a compact crankset, the 5.2 is geared perfectly for the steep grades of the Rockies. At I Know A Guy Bicycles, we see this model as the ultimate “High-Value Endurance” pick. It’s a bike that proved you don’t have to be beat up by the pavement to go fast. Whether you are looking to refresh the press-fit bottom bracket or upgrade to a wider, 28mm tubeless wheelset for even more comfort, the Domane 5.2 is a modern classic that still holds its own against the newest bikes on the market.

- A) Seat Tube: 54cm Center to Top Tube
- B) Effective Seat Tube: 56cm
- C) Effective Top Tube: 55.4cm
- D) Top Tube: 53cm
- E) Wheel Base: 110cm
- F) Standover Height to Top Tube: 80cm/ 31.5 inches
- G) Head Tube: 17.5cm
- H) Reach: 36cm
- I) Stack: 58cm
Note: Measurements can be .5 +/-
A little about the seller: I’ve been in the cycling industry for more than 30 years (I know, that makes me old!). I’ve been a professional bicycle mechanic for most of those years, including working locally at Lee’s Cyclery before they became Trek Stores. Now I work from home as a Customer Success Manager for a software team. But I still love fixing up and working on bikes, and riding them too! Purchase from me with peace of mind. Not only can you trust my years of experience, but I will also fit you for the bike and provide any mechanical insight at the time of purchase. No warranties or refunds are provided. The bikes are sold as-is. But It includes follow-up minor adjustments and fitting if needed within the first 30 days if sold locally.
Shipping information: I ship UPS Ground, and the bike is disassembled. It will be packed very well, but if you see any damage to the box or bike, keep the box and packing material, plus take pictures. I do insure all bikes that are shipped and require a signature. In addition, if shipped out of Colorado, there is no Sales Tax. Colorado customers, try to buy Local. Info below:
For Local Purchases Only:
If you’re local to Loveland, Colorado, it is highly recommended to come to check it out in person.
Purchase from me with peace of mind. Not only can you trust my years of experience, but I will also fit you for the bike and provide any mechanical insight at the time of purchase. The bikes are sold as-is. No warranties or refunds, provided. But it INCLUDES follow-up minor adjustments and fitting if needed within the first 30 days.





























