Test monthly revenue against variable expenses and fixed costs to see when the store covers overhead.
Money available to cover fixed costs$43,492
$52,333 revenue - $8,841 variable expenses
Margin ratio
83%
Covers fixed costs
Yes
Break-even chart Revenue Total costs
Which expenses stay fixed and which move with sales for a high wheel bicycle retailer?
Cost classification
Break-even is only useful if each expense behaves the right way in the model. Here, revenue-linked bike procurement and delivery fees should flex with sales, while rent, insurance, and baseline staffing create the monthly hurdle.
Expense
Cost
Break-Even Treatment
Common Mistake
Procurement of Bikes and Parts
Variable
Model at 14.0% of revenue in the first year, improving to 11.0% by the fifth year.
Don’t treat inventory purchases as overhead.
Transaction and Delivery Fees
Variable
Model at 4.5% of revenue in the first year, falling to 3.3% by the fifth year.
Don’t ignore freight and payment fees.
Showroom Rent
Fixed
Use $2,500 per month from Month 1 through Month 60.
Don’t spread rent across units too early.
Utilities and Internet
Fixed
Use $600 per month in the source model.
Don’t inflate it without usage data.
Business Insurance
Fixed
Use $350 per month as a recurring operating expense.
Don’t skip test-ride and retail exposure.
Store Maintenance
Fixed
Use $250 per month during the monthly planning range.
Don’t tie routine upkeep to each sale.
Software Subscriptions
Fixed
Use $180 per month unless the plan changes with store scale.
Don’t model subscriptions as a sales percentage.
Wages
Semi-fixed
Use first-year payroll of $229,000 annually, then step it up as mechanic and marketing staffing rise.
Don’t hire ahead of traffic proof.
How does break-even change from a lean opening month to a base case and a full run rate for a high wheel bicycle store?
Scenario table
Traffic rises from 229 weekly visitors in Year 1 to 539 in Year 5, while conversion moves from 1.6% to 3.6%. That lifts revenue faster than fixed payroll and rent, so the store moves from cash burn to a clear cushion.
Planning case only; these figures are assumptions, not guarantees.
Scenario
Monthly Revenue
Variable Costs
Fixed Costs
CM Ratio
Operating Profit
Break-Even Signal
Lean opening case
$9.3k
$1.7k
$23.5k
81.5%
-$15.9k
Still below break-even and highly cash negative.
Base Year 3 ramp
$52.3k
$8.8k
$26.8k
83.1%
$16.7k
This is the Month 26 break-even path with a modest cushion.
Full Year 5 run rate
$192.2k
$27.5k
$28.5k
85.7%
$136.2k
Strong cushion here, so overhead is no longer the constraint.
What breaks the break-even plan for a penny-farthing bike store?
Stress test
Here’s the quick math: first-year break-even is about $283k in monthly revenue. A 20% demand miss opens about a $46k gap, and 10% fixed-cost creep or higher freight pushes the hurdle to $302k-$311k. Combined pressure leaves about an $81k hole.
Stress Case
Changed Assumption
Break-Even Revenue
Revenue Gap
Risk Signal
Current plan
No change from the base plan.
$283k
$0 gap
No cushion; profit starts only above this.
Revenue shortfall
Monthly revenue runs 20% below break-even.
$283k
$46k gap
Slow traffic or low conversion opens a fast cash hole.
Fixed-cost pressure
Fixed costs rise 10% from the base plan.
$311k
$28k gap
Rent, payroll, or overhead creep raises the hurdle.
Margin pressure
Variable expenses rise from 185% to 235%.
$302k
$19k gap
Freight overruns can erase the cushion.
Combined pressure
Revenue is 20% below break-even, fixed costs rise 10%, and variable expenses rise to 235%.
$364k
$81k gap
Weak traffic plus cost creep breaks the model.
Can this high wheel bicycle shop cover its fixed load before you sign the lease?
Founder checklist
Check the opening plan against the model’s break-even path before you lock inventory, staff, or space. With Month 26 break-even and a $503k cash low, the shop only works if traffic, margin, and capacity all hold.
1Supply LeadPre-deposit
Verify bikes and parts can arrive before any inventory deposit, and confirm insurance for retail, storage, and test rides.
2Build Capacity0.5 FTE
Confirm the mechanic and sales team can assemble, tune, and hand off bikes fast enough to avoid delays and returns.
3Contribution81.5% CM
Test procurement at 14% and delivery at 4.5%; if the combined cost load runs higher, the break-even math slips fast.
4Fixed Burn$23.1k/mo
Make sure rent, payroll, utilities, insurance, and software stay near this level, and do not add a bigger lease before Month 26 proof.
5Traffic Base229/wk
Check whether 229 weekly Year 1 visitors can really support 1.6% conversion, which is only about 3.7 new buyers a week.
6Cash Buffer$503k
Keep this reserve in place, because the model stays under water until Month 26 and Year 1 EBITDA is negative.
Disclaimer
Financial Models Lab provides this article and its calculators for educational and business-planning purposes only. They are not personalized financial, accounting, tax, legal, investment, or lending advice. Figures shown are illustrative planning estimates based on publicly available sources, observed market information, and stated assumptions; they are not guaranteed benchmarks, forecasts, quotes, or expected results. Actual startup costs, revenue, expenses, margins, funding needs, and break-even timing vary by location, date, business size, operating model, financing, and execution. Review the cited sources and replace sample assumptions with current local data, supplier quotes, and your own operating inputs. Calculator and financial-model outputs change when assumptions change. Consult qualified professional advisers before making material commitments. Financial Models Lab sells related templates and may link to its own products. Please report suspected errors through our contact page.
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