ATB Alternatives to the Sklar PBJ Custom Build
What Pete Needs
Pete's a mountain biker (rides a Specialized Epic Evo Pro) looking for a second bike that handles:
- Catalina Island bikepacking: 30 miles each way on fire roads, overnight, loaded with gear
- Altadena fire roads and trails: steep, loose, right out the front door
- Flat bars or alt bars: tried drop-bar gravel, hated it. Felt unstable, brakes were weak, not his thing.
- Electronic shifting: fell in love with Di2 on the Sklar quote, doesn't want to go back to mechanical
- Strong brakes: 4-piston hydraulic minimum. He's coming from MTB; 2-piston gravel brakes won't cut it on steep fire roads
- Bikepacking mounts: bottle cages, rack/fender mounts, the usual
- Budget: flexible, but the Sklar build at $6,570 is the high-water mark
The Reality
Flat-bar bikes with stock electronic shifting basically don't exist as production models. Most drop-bar gravel bikes come with AXS or Di2; most flat-bar hardtails top out at mechanical SLX. Getting Pete's spec almost always means one of:
- Buy a trail hardtail and upgrade to AXS ($500-$900 on top)
- Go semi-custom (Sklar, Chumba)
- Accept mechanical shifting
The Bikes
1. Salsa Timberjack XT 29 (Best Value Path)
$1,999 (on sale) | + GX Eagle AXS = ~$2,600 total
130mm RockShox fork, 4-piston brakes, flat bar, 29x2.5" (2.6" clearance), Alternator dropouts. Good bikepacking mounts. Aluminum frame.
*The practical choice. Add AXS and you've got 80% of the Sklar's capability for 40% of the price. The tradeoff is aluminum ride quality and it's a trail bike doing double duty, not a purpose-built ATB.*
2. Surly Krampus Front Suspension (Bikepacking DNA)
$2,699 | + GX Eagle AXS = ~$3,400 total
120mm RockShox fork, 4-piston brakes, CroMoly steel, flat bar, 29x3.0" max clearance. Tour Divide-proven mounts everywhere.
*Surly's bikepacking reputation is earned. Steel ride quality, 29+ capable, mounts for days. Heavier and slower, but built to be loaded up and ridden all day. No dropper stock.*
3. Chumba Yaupon Flat Bar (Head-to-Head Sklar Competitor)
$3,500-$5,500 custom | Can be spec'd with AXS from the factory
Steel frame (Austin, TX), configurable fork/drivetrain/brakes, flat bar ATB geometry, extensive bikepacking mounts. Made in USA.
*The only real apples-to-apples comparison. Also semi-custom, also steel, also flat bar, also available with electronic shifting stock. Worth getting a quote to compare directly against the Sklar.*
4. Trek 1120 (Bikepacking-First Design)
$2,899 | + GX Eagle AXS = ~$3,600 total
Rigid carbon fork, 4-piston brakes, aluminum frame, 29+, flat bar, dropper included. Integrated front rack and dry bag holster system.
*Purpose-built bikepacking machine with clever integrated storage. The rigid fork is a compromise, but for fire roads (not technical singletrack) it's fine. Trek dealer service is easy to find in LA.*
5. Salsa Timberjack SLX 29 (Budget Entry)
$1,599 | + GX Eagle AXS = ~$2,300 total
140mm RockShox fork, 4-piston brakes, flat bar, 29x2.5". Same frame as the XT build, just lower spec.
*Cheapest path into this category. Since you're swapping the drivetrain to AXS anyway, the SLX vs. XT stock spec doesn't matter much.*
6. Kona Unit X 29 (Classic Steel Rigid)
~$1,700 | + GX Eagle AXS = ~$2,500 total
Rigid CroMoly steel, 2-piston brakes, Deore 12-speed, flat bar, 29x2.6" stock. Modular dropouts. Legendary bikepacking reputation.
*Great steel bikepacking platform, but only 2-piston brakes (a dealbreaker for Pete's steep terrain) and rigid (no suspension). Mounts are excellent.*
7. Kona Honzo ESD (Trail Weapon)
$3,299 | + GX Eagle AXS = ~$4,000 total
150mm Marzocchi fork, 4-piston brakes, CroMoly steel, flat bar, 29". Aggressive trail geometry.
*Most capable on actual trails, but it's not really a bikepacking bike. Limited cargo mounts. More of an enduro hardtail that happens to be steel.*
Comparison Table
| Bike | Total w/ AXS | Electronic Stock? | 4-Piston? | Fork | Bikepacking Mounts | Frame |
|---|---|---|---|---|---|---|
| Timberjack XT 29 | ~$2,600 | No | Yes | 130mm | Good | Aluminum |
| Surly Krampus SUS | ~$3,400 | No | Yes | 120mm | Excellent | Steel |
| Chumba Yaupon | $3,500-5,500 | Yes (to order) | Yes | Configurable | Excellent | Steel |
| Trek 1120 | ~$3,600 | No | Yes | Rigid | Excellent (integrated) | Aluminum |
| Timberjack SLX 29 | ~$2,300 | No | Yes | 140mm | Good | Aluminum |
| Kona Unit X 29 | ~$2,500 | No | No (2-piston) | Rigid | Excellent | Steel |
| Kona Honzo ESD | ~$4,000 | No | Yes | 150mm | Moderate | Steel |
| Primos Dame Flat Bar | $899 | No | No (2-piston) | Rigid | Good | Steel |
| Sklar PBJ (custom) | $6,570 | Yes (Di2) | Yes | Rigid | Good | Steel |
Primos Dame Flat Bar ($899): The Budget Baseline
A friend suggested the Primos Dame Flat Bar as a budget option. Here's why it doesn't fit Pete's needs:
The specs: 4130 CroMoly steel frame, MicroSHIFT Sword 10-speed mechanical drivetrain, 650b/27.5" wheels with 52mm (2.0") max tire clearance, flat-mount disc brakes with 160mm 6-bolt rotors and resin pads (no-name 2-piston calipers), dropper post, flat bar. Weight: 28.9 lbs. Price: $899.
Why it doesn't work for Pete:
- Brakes are a dealbreaker. No-name 2-piston calipers with 160mm rotors and resin pads. A Reddit reviewer at 195lbs said he had to change how he rides around cars because the brakes lack power. Pete already hated underpowered brakes on a friend's gravel bike. On steep Altadena fire roads or loaded Catalina descents, these would be genuinely sketchy.
- No electronic shifting. MicroSHIFT Sword 10-speed mechanical. Perfectly functional budget groupset, but Pete said he fell in love with electronic shifting. Going from Di2 to budget 10-speed mechanical is like going from an Epic Evo to a department store bike in terms of shifting feel.
- Small wheels, narrow tires. 650b with 2.0" max clearance vs. the Sklar's 29x2.5". Smaller wheels and narrower tires mean less rollover, less traction, less stability on the rocky fire roads Pete rides.
- Build quality concerns. Multiple Reddit reviews mention paint-filled bolt threads requiring thread chasing, stuck/stripped bolts, fork alignment issues, and missing cable guides. Fine for an $899 bike from a new brand, not fine for someone used to a high-end mountain bike.
- It solves a different problem. The Dame is a great "$900 do I even like this category" bike for someone exploring gravel/ATB riding. Pete already knows he likes trail riding and already owns a premium mountain bike. This would feel like a massive downgrade in every tactile way.
Fair use case for the Dame: City riding, casual gravel, someone's first "real" bike, a beater you don't worry about locking up outside.
Bottom Line
The practical money-saving alternatives are the Timberjack + AXS (~$2,600) or Surly Krampus + AXS (~$3,400). The Chumba Yaupon is the one head-to-head competitor worth quoting against the Sklar.
The Sklar at $6,570 buys custom geometry, exactly Pete's spec with no compromise parts to strip, and a handmade California frame. The mass-market bikes do the job at half the price, but they're not the same experience, and most of them require buying a bike then immediately swapping the drivetrain.